Racing Dynamics Downpipes for BMW M3 F80, BMW M4 F82/F83 and BMW M2 Competition with S55 turbocharged 3.0 liter inline-6 motor.

Features:

• This model replaces the restrictive OEM catayltic converters with 200 cell sport cats for increased HP and Torque.
• Gen2 version is the 2nd generation of our downpipes and now incorporates flex joints to absorb engine/chassis vibration and improve installation.
• These downpipes now incorporate heat shielding over most of their lengths to reduce radiant heating into cabin and engine compartment.
• This downpipe fits BMW 2 series M2 Competition and BMW 3 and 4 series, F80/F82 M3/M4 with S55 turbocharged 3.0 liter inline-6 motor.
• Removing exhaust flow restrictions increases horsepower and torque significantly.
• Our Gen2 M3/M4 downpipes are now a full 76mm (3″) in diamter for best air flow. Low cost versions are generally only 70 mm (2.75″)
• Improves throttle response and generally improves turbo spool up.
• Downpipes are manufactured out of 304 stainless steel.
• Straight-through tubing section replaces the heavy and restrictive OEM catalytic converters for maximum power and sound. Straight-through design improves horsepower and torque significantly
• Direct bolt-on replacement for OEM primary catalytic converters.
• Our Gen2 downpipes now include heatshield covering over 90% of the downpipes
• Less thermal load on the turbocharger
• Recommended for track/off-road use only.