THIS TURBO REQUIRES A FULL 3 INCH EXHAUST, FROM TURBO TO EXHAUST TIPS. ANYTHING LESS WILL VOID THE WARRANTY ON THE TURBO.
A brand-new High Flow High Torque K04 GT Dominator™ Turbo Upgrade for your 2nd Generation Turbocharged MINI Cooper S! Although the factory turbo does a splendid job of forced induction for the Cooper S, there IS room for improvement. These Turbos are based on the K04 Turbo with emphasis on 'Peak Power and Torque' for track type applications where you spend the majority of your time in the upper RPM range. Takes a little longer to spool up but HANG ON when it does! Kit includes oversized silicone Turbo Inlet Adapter Pipe to connect with popular aftermarket Intake Kits such as NM Engineering and K&N.
NOTES:
- This Turbo requires an upgraded intake system such as the NM Engineering Intakes. NOT compatible with the stock intake system.
- These K04 Turbo's MUST HAVE a high flow / low backpressure 3.0" or larger aftermarket downpipe and exhaust system which will allow this turbo to reach optimal performance and avoid potential damage. 3 inch minimum diameter from turbo to exhaust tips.
LIMITATIONS OF THE STOCK K03 TURBO
The MINI's factory 37mm K03 turbocharger with some mods can produce 17psi from about 1500rpm to about 3800rpm. But when you reach 4800rpm your torque will drop off because the boost has dropped to 13psi. Once you reach 5400 rpm you are down to about 7-8psi which cuts your torque in half. The 37mm stock turbo is just not designed to give you boost throughout the entire RPM range. If you are on the track or strip it will feel like the car is losing power when you need it most.
WHY CHOOSE THE K04 GTD UPGRADE?
The JMTCs Extreme GTD upgrade high pressure high-flow dual scrolling turbo uses a huge 47mm compressor to give you full boost at the top end. This turbocharger delivers high torque and high boost at the higher RPM which is perfect for the track or any off-road application and extreme street applications. The 47mm compressor with the huge GTX exhaust turbine is designed to give you extra boost at the top end. The Huge high flow GTX exhaust turbine helps the exhaust flow and prevents the torque loss you see with the small stock K03 turbine. If you are looking for an extreme track, strip dominating, extreme street upgrade that delivers full race performance, this is the turbo for you. It will deliver great torque and last longer than any other turbo on the market.
Since the exhaust turbine is larger it will spool up a little slower but wait until the top end! This means that instead of spooling up at 1800rpms like in the stock OEM K03 turbocharger, the K04 will spool up at 2800rpms to 3000rpms. There are ways get the turbo to spool sooner and the best are changing to an exhaust larger than 3.0" with a bigger high flow catalytic converter, using a high flow intake, head and exhaust manifold porting. We only recommend using a K04 on a mini cooper that has had a lot of upgrades designed to increase air flow.
All of these turbos are built with upgraded internals and a 360deg thrust bearing to handle high boost pressures. The larger compressor allows higher sustained boost much higher into the rpm range. They will all bolt up to your OEM exhaust manifold and Cat-Fold (Catalytic converter).
Maximize your power gains with the ECU upgrade from the supplier of these Turbo upgrades.
Fits the following Cooper S Models with the N14 and N18 engines:
2007-2013 R56 MINI Cooper S Hatchback
2008-2014 R55 MINI Cooper S Clubman
2009-2015 R57 MINI Cooper S Convertible
2012-2015 R58 MINI Cooper S Coupe
2012-2015 R59 MINI Cooper S Roadster
2011-2016 R60 MINI Cooper S Countryman
2013-2016 R61 MINI Cooper S Paceman
Also fits JCW models.
Include the 17 digit vin number from you MINI when ordering.
See the Turbo Application Guide to see all the options for replacement and upgraded Turbo's.
For Turbo related replacement hardware, see our Mini Cooper Turbo Installation Hardware Application Guide.
TURBOCHARGER DETAILS
KO4 GT Dominator™
- Huge high flow Billet 47mm compressor
- Huge high torque exhaust turbine
- Upgraded 360deg bearing
- High strength K04 internals
- Designed for higher pressure
- High temperature alloy turbine housing
- Dual scrolling turbine housing
- Water cooled bearing housing
We have the solution to your 325 + HP dreams! The GT Dominator™ has a clean OEM fit and installation. We designed our GT Dominator™ to fit and work optimally with all OEM components. We know that nobody likes modifying, ripping out, destroying, and throwing away good expensive parts that can’t be replaced if there is ever an issue with your car. No cutting, drilling, adapter plates, or modifications required, it is OEM ECU controllable, and to top it off, you don't need to install any aftermarket parts to get it to fit. Installing a GT Dominator TM will save you not only a huge amount of time and frustration but a lot of money.
Due to the larger inlet of this Turbo, a silicone intake adapter hose is included to connect this turbo to upgraded Intake Kits like these. This silicone adapter hose goes from 2" to 2.75".
NOTE: In order to maximize performance, we strongly recommend an ECU upgrade. For engine and turbocharger reliability, JMTC requires a high flow / low backpressure 3.0" or larger exhaust system which will allow this turbo to reach optimal performance and avoid potential damage.
CORE DEPOSIT
Additional Core Deposit is charged with every Turbo order. Core charges are refunded when a 'Rebuildable' core from your MINI is returned and inspected by the manufacturer.
All or part of the core deposit may be forfeited if the core is severely damaged and not rebuildable
The amount of core refund is determined at the discretion of the Turbo Manufacturer.
NOTES:
- Recommend two-degree colder spark plugs (not recommended Bosch or Beru)
- Requires 3.0" or larger exhaust system for engine and turbo reliability.
CAUTION!
Both the GT Dominator and Extreme 45, are extreme turbochargers and require a lot more air flow than the OEM turbocharger. Even though it is a direct bolt in unit it requires additional upgrades to operate optimally. Always follow our recommendations and if you do not have the upgrades we recommend and don’t plan on doing them, then we recommend you choose the Super 42 K03 turbocharger upgrade. Failure can occur if our recommendations are ignored, and this type of failure is not covered by our warranty!
We pride ourselves in offering quality products to our customers, and we respect your feedback. We want you to enjoy your purchase, and we insist that you make sure when you are making a purchase, that you know all the facts on the upgrades you require to get the best possible performance you desire.
Read the Manufacturer's Installation Requirements below - THESE ARE REQUIREMENTS YOU MUST FOLLOW IN ORDER TO VALIDATE THE MANUFACTURER'S LIMITED WARRANTY - NO EXCEPTIONS.
Also read the related Tech Articles listed at the bottom of this page.
Some States (like California) have ever tightening requirements for emissions testing and inspections. Always check your local regulations on compliance for street use.
OTHER PARTS TO CONSIDER
Maximum performance is achieved when combined with other upgrades such as Hi-Flow Intake, Upgraded Downpipe and Exhaust, and an ECU upgrade. THESE LARGER TURBO'S REQUIRE MORE AIFLOW AND FUEL THAN THE STOCK COMPONENTS CAN PROVIDE. (Imagine trying to breathe thru a straw.) For best results, upgrade other intake and exhaust components for improved flow. Here are some of the recommended upgrades in the order of importance:
A. Larger diameter higher flowing Downpipe with Cat and Exhaust System (REQUIRED for K04 Turbos).
B. Larger Intercooler for lower intake air temperatures.
C. Hi-Flow Intake for improve air flow into the engine.
D. ECU software upgrade to maximize performance.
Gaskets, seals, studs, and other hardware are NOT included. If you need to replace these items, order separately.
See our Turbo Install Kit. This kit includes all the most commonly replaced gaskets and seals, plus a new oil supply line. Additional gaskets, seals and other hardware may be required depending on the installation.
When servicing the Turbo on the MINI, it is very important (maybe even critical) that you replace the Turbo Oil Supply line to avoid potential future turbo issues.
Over time, the turbo and turbo supply line builds a fine layer of 'coked' or cooked oil on the internal surfaces. When you remove the supply line from the turbo, this disrupts the continuity of the coked layer with great potential of some of the coking to flake free. These coked oil particles can easily clog the fine journals that feed oil to the turbo bearings. Once the oil flow is compromised, it is only a matter of time for cascading failures that can damage the turbo and catalytic converter! Don't take a chance - REPLACE the Oil Supply Line ! ! !
For additional protection, take a look at the Turbo Oil Supply Line Thermal Wrap.
For other TURBOCHARGER related products, see our TURBOCHARGER products page.
OUR ADVICE ON DRIVING A TURBOCHARGED MINI
We STRONGLY recommend you change the motor oil more frequently than the factory recommendation. Anecdotal evidence suggests Turbo's with more frequent oil changes have fewer issues. We suggest 5000 mile oil change interval or less. Make sure you use FULL SYNTHETIC motor oil with the ACEA (Association des Constructeurs Europeens d'Automobiles) A3/B3 specification.
After a long or hard drive, drive 'easy' for a while just before your destination. This will reduce the engine and oil temperatures to lower operating levels. Also make a habit to let the engine idle for a couple minutes before shutting off. This will help cool the turbo preventing oil coking in the journals and bearings. Yes, the MINI has an auxiliary water pump that runs after shutdown to help cool the turbo, BUT - the oil isn't circulating - it just sits there waiting for the turbo to cool. This is why we recommend you idle before shutdown - let the oil circulate while the temperature comes down.
MANUFACTURER'S INSTALLATION REQUIREMENTS to validate Manufacturers Limited Warranty:
[ ] Replace the turbo oil supply line with the turbo.
- - - Due to excess heat round the turbocharger and particulates suspended in the turbo supply oil the oil will harden or "coke~ in the turbo and oil supply lines. If the oil supplyline is not replaced with the turbocharger the coked oil will break free from the side walls of the oil supply line and damage the turbocharger bearings. Cleaning the oil line will not help and only aggravate and increase the likelihood of the turbo failure due to coked oil breaking free form the sidewall.
[ ] Install 3.0 Inch or larger FULL exhaust from turbo to exhaust tips.
- - - Downpipe and Exhaust must be at least 3.0 inches or larger. Catalytic converters must be high flow if retained. NO STOCK EXHAUST COMPONENTS may be used including downpipe, exhaust pipes, catalytic converters, resonators or mufflers - all must be upgraded.
[ ] Prime the turbocharger.
- - - No oil on the turbocharger bearings will cause failure of the bearings if they are dry even for a short period of time. Prime the new turbo with oil before you connect the oil lines. For maximum protection, see Turbo Additive for Priming New Turbo's
[ ] Fresh engine oil with a turbocharger change
- - - Perform an oil change with full synthetic motor oil at the factory recommended viscosity when you install a new turbo. Change the oil again after one heat cycle if the engine is brand new, newly rebuilt, or if your MINI had a catastrophic turbo failure.
MANUFACTURERS WARRANTY STATEMENT
Manufacturers Limited Warranty covers all turbochargers to be free of defects in materials and workmanship for normal use and service up to 1 year after retail purchase. Manufacturer reserves the right to examine any part returned for warranty claim to determine whether a defect in materials or workmanship exists in such product. Manufacturer liability is limited to repairing, replacing or crediting towards other product, and credits will not exceed the invoice total for the parts.
Labor and storage charges are not products of the manufacturer and, therefore, will not be reimbursed for any reason. Final determination of the condition and suitability of the parts for uses contemplated by the buyer and is a sole responsibility of the buyer. Manufacturer will not be liable for any damage or injury to persons or property that might be claimed as a result of improper installation or misuse of any part subjected to this warranty. No warranty claim or refund will be given until the item is in our possession and we have processed it which can take up to 20days.
Before installing any of our products it is the responsibility of the installer/owner to fix or resolve any and all problems that caused the original part / item to fail and can cause the new part / item to fail again. Since we do not troubleshoot, we take no responsibility for incorrectly diagnosing the issue that caused the initial part / item to fail. There are no warranties expressed or implied beyond those set forth above.
LEARN MORE ABOUT TURBOCHARGERS
Take a look at these informative videos that will help you avoid potential pitfalls with the Turbo:
How to Kill a New Turbo Part 1 - Oil Line
How to Kill a New Turbo Part 2 - Catalytic Converter
How to Kill a New Turbo Part 3 - No or Low Oil
How to Kill a New Turbo Part 4 - Using the Correct Oil
NOTE: Some states (like California) have ever tightening requirements for emissions testing and inspections. Always check your local regulations on compliance for street use.
THIS TURBO REQUIRES A FULL 3 INCH EXHAUST, FROM TURBO TO EXHAUST TIPS. ANYTHING LESS WILL VOID THE WARRANTY ON THE TURBO.
A brand-new High Flow High Torque K04 GT Dominator™ Turbo Upgrade for your 2nd Generation Turbocharged MINI Cooper S! Although the factory turbo does a splendid job of forced induction for the Cooper S, there IS room for improvement. These Turbos are based on the K04 Turbo with emphasis on 'Peak Power and Torque' for track type applications where you spend the majority of your time in the upper RPM range. Takes a little longer to spool up but HANG ON when it does! Kit includes oversized silicone Turbo Inlet Adapter Pipe to connect with popular aftermarket Intake Kits such as NM Engineering and K&N.
NOTES:
- This Turbo requires an upgraded intake system such as the NM Engineering Intakes. NOT compatible with the stock intake system.
- These K04 Turbo's MUST HAVE a high flow / low backpressure 3.0" or larger aftermarket downpipe and exhaust system which will allow this turbo to reach optimal performance and avoid potential damage. 3 inch minimum diameter from turbo to exhaust tips.
LIMITATIONS OF THE STOCK K03 TURBO
The MINI's factory 37mm K03 turbocharger with some mods can produce 17psi from about 1500rpm to about 3800rpm. But when you reach 4800rpm your torque will drop off because the boost has dropped to 13psi. Once you reach 5400 rpm you are down to about 7-8psi which cuts your torque in half. The 37mm stock turbo is just not designed to give you boost throughout the entire RPM range. If you are on the track or strip it will feel like the car is losing power when you need it most.
WHY CHOOSE THE K04 GTD UPGRADE?
The JMTCs Extreme GTD upgrade high pressure high-flow dual scrolling turbo uses a huge 47mm compressor to give you full boost at the top end. This turbocharger delivers high torque and high boost at the higher RPM which is perfect for the track or any off-road application and extreme street applications. The 47mm compressor with the huge GTX exhaust turbine is designed to give you extra boost at the top end. The Huge high flow GTX exhaust turbine helps the exhaust flow and prevents the torque loss you see with the small stock K03 turbine. If you are looking for an extreme track, strip dominating, extreme street upgrade that delivers full race performance, this is the turbo for you. It will deliver great torque and last longer than any other turbo on the market.
Since the exhaust turbine is larger it will spool up a little slower but wait until the top end! This means that instead of spooling up at 1800rpms like in the stock OEM K03 turbocharger, the K04 will spool up at 2800rpms to 3000rpms. There are ways get the turbo to spool sooner and the best are changing to an exhaust larger than 3.0" with a bigger high flow catalytic converter, using a high flow intake, head and exhaust manifold porting. We only recommend using a K04 on a mini cooper that has had a lot of upgrades designed to increase air flow.
All of these turbos are built with upgraded internals and a 360deg thrust bearing to handle high boost pressures. The larger compressor allows higher sustained boost much higher into the rpm range. They will all bolt up to your OEM exhaust manifold and Cat-Fold (Catalytic converter).
Maximize your power gains with the ECU upgrade from the supplier of these Turbo upgrades.
Fits the following Cooper S Models with the N14 and N18 engines:
2007-2013 R56 MINI Cooper S Hatchback
2008-2014 R55 MINI Cooper S Clubman
2009-2015 R57 MINI Cooper S Convertible
2012-2015 R58 MINI Cooper S Coupe
2012-2015 R59 MINI Cooper S Roadster
2011-2016 R60 MINI Cooper S Countryman
2013-2016 R61 MINI Cooper S Paceman
Also fits JCW models.
Include the 17 digit vin number from you MINI when ordering.
See the Turbo Application Guide to see all the options for replacement and upgraded Turbo's.
For Turbo related replacement hardware, see our Mini Cooper Turbo Installation Hardware Application Guide.
TURBOCHARGER DETAILS
KO4 GT Dominator™
- Huge high flow Billet 47mm compressor
- Huge high torque exhaust turbine
- Upgraded 360deg bearing
- High strength K04 internals
- Designed for higher pressure
- High temperature alloy turbine housing
- Dual scrolling turbine housing
- Water cooled bearing housing
We have the solution to your 325 + HP dreams! The GT Dominator™ has a clean OEM fit and installation. We designed our GT Dominator™ to fit and work optimally with all OEM components. We know that nobody likes modifying, ripping out, destroying, and throwing away good expensive parts that can’t be replaced if there is ever an issue with your car. No cutting, drilling, adapter plates, or modifications required, it is OEM ECU controllable, and to top it off, you don't need to install any aftermarket parts to get it to fit. Installing a GT Dominator TM will save you not only a huge amount of time and frustration but a lot of money.
Due to the larger inlet of this Turbo, a silicone intake adapter hose is included to connect this turbo to upgraded Intake Kits like these. This silicone adapter hose goes from 2" to 2.75".
NOTE: In order to maximize performance, we strongly recommend an ECU upgrade. For engine and turbocharger reliability, JMTC requires a high flow / low backpressure 3.0" or larger exhaust system which will allow this turbo to reach optimal performance and avoid potential damage.
CORE DEPOSIT
Additional Core Deposit is charged with every Turbo order. Core charges are refunded when a 'Rebuildable' core from your MINI is returned and inspected by the manufacturer.
All or part of the core deposit may be forfeited if the core is severely damaged and not rebuildable
The amount of core refund is determined at the discretion of the Turbo Manufacturer.
NOTES:
- Recommend two-degree colder spark plugs (not recommended Bosch or Beru)
- Requires 3.0" or larger exhaust system for engine and turbo reliability.
CAUTION!
Both the GT Dominator and Extreme 45, are extreme turbochargers and require a lot more air flow than the OEM turbocharger. Even though it is a direct bolt in unit it requires additional upgrades to operate optimally. Always follow our recommendations and if you do not have the upgrades we recommend and don’t plan on doing them, then we recommend you choose the Super 42 K03 turbocharger upgrade. Failure can occur if our recommendations are ignored, and this type of failure is not covered by our warranty!
We pride ourselves in offering quality products to our customers, and we respect your feedback. We want you to enjoy your purchase, and we insist that you make sure when you are making a purchase, that you know all the facts on the upgrades you require to get the best possible performance you desire.
Read the Manufacturer's Installation Requirements below - THESE ARE REQUIREMENTS YOU MUST FOLLOW IN ORDER TO VALIDATE THE MANUFACTURER'S LIMITED WARRANTY - NO EXCEPTIONS.
Also read the related Tech Articles listed at the bottom of this page.
Some States (like California) have ever tightening requirements for emissions testing and inspections. Always check your local regulations on compliance for street use.
OTHER PARTS TO CONSIDER
Maximum performance is achieved when combined with other upgrades such as Hi-Flow Intake, Upgraded Downpipe and Exhaust, and an ECU upgrade. THESE LARGER TURBO'S REQUIRE MORE AIFLOW AND FUEL THAN THE STOCK COMPONENTS CAN PROVIDE. (Imagine trying to breathe thru a straw.) For best results, upgrade other intake and exhaust components for improved flow. Here are some of the recommended upgrades in the order of importance:
A. Larger diameter higher flowing Downpipe with Cat and Exhaust System (REQUIRED for K04 Turbos).
B. Larger Intercooler for lower intake air temperatures.
C. Hi-Flow Intake for improve air flow into the engine.
D. ECU software upgrade to maximize performance.
Gaskets, seals, studs, and other hardware are NOT included. If you need to replace these items, order separately.
See our Turbo Install Kit. This kit includes all the most commonly replaced gaskets and seals, plus a new oil supply line. Additional gaskets, seals and other hardware may be required depending on the installation.
When servicing the Turbo on the MINI, it is very important (maybe even critical) that you replace the Turbo Oil Supply line to avoid potential future turbo issues.
Over time, the turbo and turbo supply line builds a fine layer of 'coked' or cooked oil on the internal surfaces. When you remove the supply line from the turbo, this disrupts the continuity of the coked layer with great potential of some of the coking to flake free. These coked oil particles can easily clog the fine journals that feed oil to the turbo bearings. Once the oil flow is compromised, it is only a matter of time for cascading failures that can damage the turbo and catalytic converter! Don't take a chance - REPLACE the Oil Supply Line ! ! !
For additional protection, take a look at the Turbo Oil Supply Line Thermal Wrap.
For other TURBOCHARGER related products, see our TURBOCHARGER products page.
OUR ADVICE ON DRIVING A TURBOCHARGED MINI
We STRONGLY recommend you change the motor oil more frequently than the factory recommendation. Anecdotal evidence suggests Turbo's with more frequent oil changes have fewer issues. We suggest 5000 mile oil change interval or less. Make sure you use FULL SYNTHETIC motor oil with the ACEA (Association des Constructeurs Europeens d'Automobiles) A3/B3 specification.
After a long or hard drive, drive 'easy' for a while just before your destination. This will reduce the engine and oil temperatures to lower operating levels. Also make a habit to let the engine idle for a couple minutes before shutting off. This will help cool the turbo preventing oil coking in the journals and bearings. Yes, the MINI has an auxiliary water pump that runs after shutdown to help cool the turbo, BUT - the oil isn't circulating - it just sits there waiting for the turbo to cool. This is why we recommend you idle before shutdown - let the oil circulate while the temperature comes down.
MANUFACTURER'S INSTALLATION REQUIREMENTS to validate Manufacturers Limited Warranty:
[ ] Replace the turbo oil supply line with the turbo.
- - - Due to excess heat round the turbocharger and particulates suspended in the turbo supply oil the oil will harden or "coke~ in the turbo and oil supply lines. If the oil supplyline is not replaced with the turbocharger the coked oil will break free from the side walls of the oil supply line and damage the turbocharger bearings. Cleaning the oil line will not help and only aggravate and increase the likelihood of the turbo failure due to coked oil breaking free form the sidewall.
[ ] Install 3.0 Inch or larger FULL exhaust from turbo to exhaust tips.
- - - Downpipe and Exhaust must be at least 3.0 inches or larger. Catalytic converters must be high flow if retained. NO STOCK EXHAUST COMPONENTS may be used including downpipe, exhaust pipes, catalytic converters, resonators or mufflers - all must be upgraded.
[ ] Prime the turbocharger.
- - - No oil on the turbocharger bearings will cause failure of the bearings if they are dry even for a short period of time. Prime the new turbo with oil before you connect the oil lines. For maximum protection, see Turbo Additive for Priming New Turbo's
[ ] Fresh engine oil with a turbocharger change
- - - Perform an oil change with full synthetic motor oil at the factory recommended viscosity when you install a new turbo. Change the oil again after one heat cycle if the engine is brand new, newly rebuilt, or if your MINI had a catastrophic turbo failure.
MANUFACTURERS WARRANTY STATEMENT
Manufacturers Limited Warranty covers all turbochargers to be free of defects in materials and workmanship for normal use and service up to 1 year after retail purchase. Manufacturer reserves the right to examine any part returned for warranty claim to determine whether a defect in materials or workmanship exists in such product. Manufacturer liability is limited to repairing, replacing or crediting towards other product, and credits will not exceed the invoice total for the parts.
Labor and storage charges are not products of the manufacturer and, therefore, will not be reimbursed for any reason. Final determination of the condition and suitability of the parts for uses contemplated by the buyer and is a sole responsibility of the buyer. Manufacturer will not be liable for any damage or injury to persons or property that might be claimed as a result of improper installation or misuse of any part subjected to this warranty. No warranty claim or refund will be given until the item is in our possession and we have processed it which can take up to 20days.
Before installing any of our products it is the responsibility of the installer/owner to fix or resolve any and all problems that caused the original part / item to fail and can cause the new part / item to fail again. Since we do not troubleshoot, we take no responsibility for incorrectly diagnosing the issue that caused the initial part / item to fail. There are no warranties expressed or implied beyond those set forth above.
LEARN MORE ABOUT TURBOCHARGERS
Take a look at these informative videos that will help you avoid potential pitfalls with the Turbo:
How to Kill a New Turbo Part 1 - Oil Line
How to Kill a New Turbo Part 2 - Catalytic Converter
How to Kill a New Turbo Part 3 - No or Low Oil
How to Kill a New Turbo Part 4 - Using the Correct Oil
NOTE: Some states (like California) have ever tightening requirements for emissions testing and inspections. Always check your local regulations on compliance for street use.
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