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MINI Cooper S Downpipe Cat Gen2 R55 R56 R57 R58 R59 R60 R61 Off Road Only

MINI Cooper S Downpipe Cat Gen2 R55 R56 R57 R58 R59 R60 R61 Off Road Only

MINI Cooper S Downpipe Cat Gen2 R55 R56 R57 R58 R59 R60 R61 Off Road Only
Selected: W/Cat
Part No: G2NME2090
$699.99
Qty:
Specially Priced. Discounts Do Not Apply.
Fits the following:
MINI (2002-Current)
Select variations below for more information:
Alternate Products
MINI Cooper Downpipe Milltek Gen2 R55-R61 Off-Road Only
MINI Cooper Downpipe Milltek Gen2 R55-R61 Off-Road Only
Performance 3" Hi-Flo™ Downpipe WITH Catalytic Converter for your Turbocharged MINI Cooper S!

In order to maximize performance from your upgraded Turbo, you need to minimize the backpressure. This unit uses 3" diameter stainless pipes with the outlet tapering down to 2.5" for compatibility stock and aftermarket exhaust systems.

NOTE: These products are NOT street legal and can only be used for OFF-ROAD or TRACK applications.

Fits the following Cooper S models:

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

NOTE: The stock stud and nuts for attaching the downpipe to the turbo will need to be replaced with socket cap bolts with the same thread pitch due to reduced clearance from the 3" pipe. These cap bolts are not included with the downpipe.

You may ask 'what's the point if the 3.0 inch downpipe tapers down to 2.5 inches'? Here are a couple reasons why the 3" downpipe improves performance:

[ ] The larger downpipe provide a greater area for the exhaust gases to expand - ie a greater pressure differential. The Turbo focuses the exhaust energy into the turbine to carry as much energy as possible. As the exhaust exits the turbo and expands, the energy dissipates so the goal is to have the largest area possible for the gas to expand - or a larger downpipe.

[ ] The inlet and outlet for the cat on the stock unit is 2.25", the inlet and outlet on this unit is 3". The oversized inlet and outlet greatly improves flow with significant reduction in back pressure. On an upgraded turbo, less backpressure equates to MORE HORSEPOWER. The larger the turbo, the more critical this becomes. It may not sound like much, but when you run a larger turbo - it makes a BIG difference! For maximum performance, run the De-Cat Downpipe (or Cat-less dowmpipe).

Naturally, you should also upgrade your exhaust system for maximum benefit.

FEATURES

  • 100% hand crafted in the USA from premium 304 Stainless Steel - flanges and O2 bungs included!
  • Water-jet cut 304 Stainless cat-back flanges, and CNC'd 304 Stainless V-Band flanges.
  • 100% TIG welded, argon back-purged.
  • Lifetime warranty against any manufacturing defects given to original owner.
  • We do NOT grind/polish our welds as some other manufacturers do. Grinding welds compromises the strength of the weld and can lead to weld failure! Especially critical in applications exposed to temperatures in excess of 1200°F. Such temperatures will also rapidly deteriorate the polished finish.

This product will probably trigger the CEL, so plan accordingly.

Special order item - allow 2+ weeks for delivery.

NOTE: These products are NOT street legal and can only be used for OFF-ROAD or TRACK applications.

 
 
Question:
is the downpipe 3 inch inlet and 3 inch outlet? or is it 3 inch inlet and 2.5 inch outlet?
Answer:
Part number G2NME2090 has a 3" inlet and 2.5" outlet. The factory cat has a 2.5" inlet and 3" outlet.
 
 
 
 
Question:
Will the 3” exhaust with cat cause a check engine light and errors? I have a MINI R57 JCW with an n14 engine.
Answer:
The AIR downpipes use a 300 cel cat - this shouldn't cause a check engine light, but it's important to note these are also not legal for road cars or emissions-controlled cars.

Mini Mania Tech Team

The MINI Cooper Parts and Accessories Experts

 
 
 
 
Question:
What is the Cell count in this cat?
Answer:
These are made using 400 Cell high flow magnaflow 0BD2 compliant cats

Mini Mania Tech Team

The MINI Cooper Parts and Accessories Experts

 
 
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