Rvng S58 XL Flow 3.5” Catless Downpipes for BMW G80/G82

The RVNG S58 XL Flow Catless Downpipes are the best-value upgrade for your 2020+ BMW M3 or M4 (S58), worth up to 27whp and 33wtq with a tune. By removing the restrictive factory catalytic converters, they cut back-pressure hard for faster spool, more power, and a more aggressive exhaust note. Where many competitors neck down, these hold a large-diameter design almost to the outlet for the best possible flow.

Features

• 3.5" inlet, large-diameter high-flow design
• Adds 22-27whp and 28-33wtq at the wheels with a tune
• Hand-made from mandrel-bent, TIG-welded 304-grade stainless steel
• Smooth radius bends to reduce turbulence and increase flow
• Fits RHD and LHD models with no modification
• Grade-12 mounting hardware included

Fitment

• 2020-2023 BMW G80 M3 RWD and AWD, including Competition
• 2020-2023 BMW G82 / G83 M4 RWD and AWD, including Competition
• 2023+ BMW G87 M2 RWD

Backed by the RVNG RaceWorks lifetime warranty against defects and fitment.

Emissions disclaimer: This product is not legal for sale or use on pollution-controlled vehicles operated on public roads and is intended for off-road, race, or closed-course competition use only. You are responsible for compliance with all applicable emissions laws; use on public roads may violate the Federal Clean Air Act (42 U.S.C. § 7522) and similar state laws. Please check your local laws before purchase and installation.

Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.