BMW S55 F80 M3 / F82 M4 / F87 M2 Catless Race Downpipe

The Palenon Performance S55 race downpipe replaces the restrictive factory catalytic converters on the BMW F8X M cars, cutting backpressure for faster turbo spool, sharper throttle response and a much more aggressive exhaust note.

Why you need it

The factory cats are the biggest restriction right after the turbos. Removing them frees up exhaust flow so the S55 spools quicker and makes more power when tuned. Palenon quotes gains of more than 30 whp and 30 wtq with a tune.

Fits

• BMW F80 M3 and M3 Competition
• BMW F82 M4, F83 M4 Convertible and M4 Competition
• BMW F87 M2 and M2 Competition
• Left-hand and right-hand drive models

Features

• High-flow catless design
• Cast stainless steel V-band to pipe transition for smooth flow
• Handcrafted from SS304 stainless steel
• Optional CEL delete kit with O2 sensor spacers (select in options)

Good to know

Intended for off-road and competition use only. Not legal for use on public roads in many areas. Removing the factory cats will set a check engine light; the optional CEL delete kit may help, but on 2019+ vehicles it may not clear the light every time. A supporting tune is recommended. Professional installation is recommended.