Revhigh Racing Turbo Downpipe – BMW S58 (2020–2025 M3/M4 G80 G82 G83)
Revhigh continues to develop high-performance exhaust solutions for today’s leading sports cars, trucks, and SUVs. Backed by an in-house dyno facility and dedicated R&D team, every system is engineered for precise fitment, proven gains, and long-term durability.
This race-spec turbo downpipe is designed for the BMW S58 platform, delivering improved exhaust flow, sharper turbo response, and serious performance potential. The standard version is decat (cat-delete) for maximum flow, with a catted option also available for those wanting a street-focused setup.
Features:
Hand-crafted 304 stainless-steel construction
CNC-machined 304 stainless-steel flanges
Optimised for high-boost turbo applications
Approx. 20–25 HP gains with tune
Available in decat or high-flow catted versions
Non-heat-shielded design
Vehicle Fitment:
BMW M3 G80 (2020–2025)
BMW M4 G82 / G83 (2020–2025)
S58 engine

