Evolution Racewerks Sports Series High-Flow Catted Downpipes — S58 (G80 M3 / G82 M4 / G87 M2)
Evolution Racewerks Sports Series high-flow catted downpipes for the twin-turbo S58 — G80 M3, G82 M4, and G87 M2. These replace the restrictive factory primary cats with high-flow 200-cell metallic catalysts — most of the flow of a catless pipe while keeping a catalyst in the system.
Catted vs catless
The 200-cell metallic cats clear emissions monitoring on the stock calibration (no check-engine light) and keep the car street-civil, where the catless Competition downpipes are race-only and trigger a CEL until the tune clears it. For most street-driven S58 builds the catted pipe is the daily-friendly choice.
What Evolution Racewerks builds in
- Mandrel-bent 3" piping, 100% T304 stainless steel
- High-flow 200-cell metallic catalytic converters
- CNC-machined billet 304 stainless V-band turbo flange (factory 3.5" V-band); retains factory O2 location — bolt-on
- 100% TIG-welded; made in the USA at Evolution Racewerks' California facility
Finishes
Brush, Polish, or our signature SwainTech White Lightning ceramic coating — choose above.
SwainTech White Lightning — our signature coating
When we coat a part, we use one coating: SwainTech White Lightning — a true ceramic thermal barrier applied about 0.015" thick (versus roughly 0.002" for paint-style "ceramic" finishes) and sprayed molten so it bonds to the metal instead of sitting on top. It cuts radiant heat off the exhaust by roughly 35–55%, dropping underhood and intake temperatures, and keeps heat inside the pipe where it sustains exhaust velocity and scavenging. And it's white — a deliberate signature in a market that otherwise all looks the same in black. Select it above.
Full S58 exhaust path
Pair with the Evolution Racewerks S58 mid-pipe and crossover for a complete exhaust. The catless Competition downpipe is the race alternative to this catted version.
California restriction
Sold for off-road/competition use. Not for sale, installation, or use on pollution-controlled vehicles in California — 49-state product; Vehicle Compliance Waiver signed at order intake. International orders ship without restriction.
Fitment
Twin-turbo S58 — G80 M3, G82 M4, G87 M2 (2021+ M3/M4, 2023+ M2). Confirm your chassis in the selector.
The Stage 2 Kit — S58 packages the matched parts + calibration for 8% under à la carte.