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Part No: G2NMK1122
This item is not available.
Specially Priced. Discounts Do Not Apply.
Fits the following:
MINI (2002-Current)

Questions?  Please call us at 1-800-946-2642 to speak with one of our experts.
Browse more MINI Cooper Stage Kits

The Stage 3 Performance Upgrade kit to transform the MINI! This kit blends the racing performance experience of Mini Mania with the demands of the enthusiastic MINI street driver.

Fits the following MNI Cooper S models:

2008-2010 R56 MINI Cooper S Hatchbacks

Compatible with US and Canadian MINI Cooper S models.

This kit is all about improving the flow into and out of the engine - a basic but effective concept. Increased flow into the engine creates stronger combustion and a less restrictive exhaust results in a more efficient engine.

The Hi-Flow Performance exhaust system from Quicksilver provides a gain in horsepower combined with the right amount of aggressive tones consistent with the performance image of the MINI Cooper S. The Hi-Flow Induction system with their free flowing re-usable air filter allows the engine to develop more horsepower while providing superior protection against dirt and debris, extending the engine life. The Hi-Flow Charge Pipe increases flow by eliminating the OEM sound chamber and increasing pipe diameter over stock. The Turbo Outlet Pipe increases flow by eliminating the intake muffler.

We also include the 'Track Version' Air-to-Air Intercoler Upgrade that reduces inlet temperatures and improves performance. As the inlet temperature is reduced, the air becomes 'more dense' packing a greater number of O2 molecules, which results in a more powerful combustion. This nets more horsepower to the wheels.

To tie all these components together, we added the NM Stage 2 ECU Upgrade. Renowned for smooth drivability and exceptional reliability this software has been proven to be the best in exceptional horsepower and torque gains. This software re-maps boost pressure, ignition timing, air fuel ratios, throttle response and rev limiter (manual trans). (ECU upgrade requires shipping your ECU module to NM Engineering in SoCal (fully insured) for programming. Unit is reprogrammed and shipped out in under 24 hours, usually same day.

You will not believe the difference this kit will make! This kit can easily be installed by any serious DIY'er or by a local service shop in just a few hours.

Racing expertise for more fun in everyday driving. The Mini Mania Stage 3 Kit for the MINI Cooper S includes components whose development is derived directly from expertise gained from motor racing. This version of the new Mini Mania kits thus carries on a tradition which dates back 32 years of racing success of the Classic and BMW MINI. The resulting package fires the MINI Cooper S to new performance peaks and even greater driving fun!

Quicksilver Exhaust

The tone at idle is nice and deep, similar to a Borla system. The QuickSilver system has slightly more volume throughout the rpm range when compared to the Borla. Definitely not loud or annoying, but a nice sporting sound.

This system delivers on every aspect that our customers have requested:

Great Sounds
Performance Increase
Light Weight
Quality Construction
Great looks
Simple Installation

QuickSilver's newly developed 'Sports' exhaust system for the R56 Cooper S Hatchback is designed to let the 4 cylinder turbo engine breathe more freely and sound great. Customers have reported up to 35bhp performance increase!

Drastic weight reduction - from 40 lbs. to 18.6 lbs! Twin 3" upswept slash cut exhaust tips (DTM style) gives your Mini an individual and assertive look.

Pleasant increase in volume with an encouraging 'Rasp' on acceleration - just right for Urban use.


[ ] This exhaust system is designed to bolt-in at the downpipe flange which removes the secondary catalytic converter. If you wish to keep the secondary cat, you can have a muffler shop cut and clamp or weld downstream to maintain the cat.

[ ] Will not cause 'Check Engine Lights'.
[ ] 3 Piece design includes 'B' pipe, tail pipe, and exhaust tips.
[ ] 25 Year Manufacturers' Warranty against corrosion.
[ ] Imported item - delivery can take 2+ weeks depending on inventory levels.

Hi-Flow Induction Kit

The 'Open-Air-Box' system gives you the abundance and unrestricted 360° of air source compared to OEM's sealed air box with flat filter and tube fed air source. During R&D, we installed temperature probes around the engine compartment and the gauge showed the inside temperature matched the ambient after vehicle speed past 20 mph. And by logging the Mass Air Flow (MAF) sensor also showed that open-air-box intake generated higher volume (gr/sec) of air going through the sensor. So when we had to choose between (a) cooler air at all speed with limited air source, vs. (b) cooler air at 20~ mph. with unlimited air source, the choice was pretty obvious.

Hi-Flow Intake Charge Pipe Upgrade

The MINI Cooper S engine utilizes a turbocharger to pressurize the intake tract to force feed the engine air to produce power. As such, a weak point has been identified that impairs the efficiency of this system.

The Hi-Flow Charge Pipe Upgrade replaces the factory necked-down hose between the intercooler and throttle body (cold-side) with a new larger diameter CNC mandrel bent pipe and silicone couplers that will not expand under boost. The system eliminates OEM sound chamber which, in result, helps to increase turbo response as well as mid-range and top-end power.

Turbo Outlet Pipe

The R56 MINI Cooper S engine utilizes a turbocharger to pressurize the intake tract to force feed the engine air to produce power. The factory set-up uses an 'intake muffler' with reduced diameter and baffling that prevents 'smooth' airflow.

The Premium Hi-Flow Turbo Outlet Pipe eliminates the intake muffler and replaces the factory rubber hose between the turbocharger and intercooler (hot-side) with a new CNC mandrel bent pipe and silicone couplers that will not expand under boost.

Track Version Intercooler Upgrade

Technically, the Intercooler upgrade does not 'add' horsepower, but it reduces the losses which results in a net gain at the wheels. The engine basically 'retains' the horsepower normally lost to high inlet temperatures. The difference is pronounced on warmer days where normally, the car would feel 'sluggish'. If you live in colder climates - this may not be a cost-effective upgrade. But if you have warm climate or hot summers, it's worth it!

[ ] High-performance Intercooler Core with turbulators
[ ] Size 550x110x90 / 550x210x50, 8.745cm ³ volume (Series 540x65x85mm, 2.984cm ³ volume)
[ ] Cast aluminum CAD / FEM optimized Endtanks
[ ] Intercooler uses the original mounting points
[ ] ~220% larger frontal area, compared to OEM intercooler
[ ] ~280% bigger volume than Factory intercooler

NM ECU Performance Upgrade

[ ] Factory maps changed not redirects.
[ ] RSA encryption and checksum blocks intact.
[ ] Original file and P-Chip file saved.
[ ] Only one performance file required for different octane, software will adjust.
[ ] NM Tune file utilizes factory flash updates which normally comes with 'fixes'
[ ] In-house chip tuning for over 20 years.
[ ] Each tune was road-tested for 2 years+ before officially released
[ ] 25-30 HP and 30-35 Ft-lbs gain on stock engine. Intercooler is needed for Stage 2 which will produce additional 20-25% power gain.
[ ] 91 Octane or higher fuel required!
[ ] We DO NOT overide check engine light/fault code produced by low-grade catalytic converters.
[ ] ECU needs to be sent to NM Engineering (CA) for the procedure.
[ ] Price includes return expedited shipping.
[ ] While the ECU is removed from your vehicle, DO NOT turn on the ignition.

Items in this kit were carefully selected for optimum 'complimentary' performance.

NOTE: Some states (like California) have ever tightening requirements for emissions testing and inspections. Always check your local regulations on compliance for street use.

Related Technical Articles:
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