Expect a 10-14 HP gain all in a high quality package!
The NM Engineering High-Flow Downpipe with Integrated Catalytic Converter Increases Performance and, adds a deeper exhaust note by maximizing flow, reducing under hood temperature and eliminating unnecessary restrictions, all in a high quality package.
All NM Engineering Exhaust Systems are manufactured from 100% Aerospace Quality T304 Stainless Steel – inside and out.
With large diameter metric sized tubing and low restriction stainless steel, it is carefully designed to reduce weight and meet State noise restriction standards.
Fits the following MINICooper S models:
This system may or may not throw a catalyst fault code. Optional O2 sensor spacers or ECU reprogramming can be used to manage the tripped fault code.
NOTE: Although this modification does not alter any emission physical out put, this unit is still not legal to be used on public road in the state of California and others that adopt similar emission regulations.