Upgrade from the restrictive stock S55 downpipes to the TCM S55 catted downpipes for increased horsepower. Along with making the car sound more aggressive. The new downpipes will help your turbos spool quicker, so less turbo lag.
Utilizes an oval shaped catalytic converter to maximize the size of the cat. Allowing this product to easily fit through the narrow gap between the frame and engine for easy install, while still maintain a large catalyst for maximum efficiency and minimal airflow disruption.
Features:
Smooth bends for maximum airflow without any drone
Oval Catalytic converter to maximize size and airflow
Adds 20-25 Horsepower
An increase of 25-30 Ft/lbs of Torque
DIY Friendly, no cutting needed.
Fits left and right hand drive.
Flex Section to reduce vibrations and aid in installation.
Fitment guaranteed.
60 Day Return Policy*
TCM Lifetime Warranty*
Fitment:
2016-2021 BMW M2 F87 Competition/CS Only.
2015-2019 BMW M3 F80 All Trim Levels
2015-2019 BMW M4 F82 F83(convertible) All Trim Levels
