Designed exclusively for track and motorsport applications, the GAIN Catless Downpipes for the M178 4.0L BiTurbo V8 unleash unrestricted power, maximum exhaust flow, and an aggressive exhaust tone worthy of a true AMG.
Fabricated from T304 stainless steel with TIG welds and CNC flanges, these downpipes eliminate all catalytic restriction for significant gains in throttle response, turbo spool, and overall performance. Recommended for Stage 2+ builds, these are the ideal choice for those chasing the edge at the circuit or on closed-course events.
Note: For off-road/race use only. Not emissions-compliant. Tuning is required to prevent CEL.
