Product details
OVERVIEW
The Evolution Racewerks Competition Series 4" Catless Downpipe replaces the restrictive factory downpipe and catalytic converter on the N20 four cylinder turbo engine.
Evolution Racewerks quotes average gains of 14 to 16 wheel horsepower and 16 wheel torque on stock boost, rising to over 24 wheel torque with a software upgrade; gains will vary based on the other modifications on your car. The company also reports a higher maximum horsepower curve, a torque curve that arrives sooner and holds longer, better throttle response and faster turbo spool.
The downpipe is mandrel bent in 4" 304 stainless steel and fully TIG welded in house. It carries a factory-style stainless steel flex section so the exhaust can move naturally, and a factory-style exhaust hanger to support the system.
SPECS
- Competition Series 4" catless downpipe
- Horsepower gains of 14 to 16 whp average (gains vary with vehicle modifications)
- Torque gains of 16 wtq average on stock boost, up to over 24 wtq with a software upgrade (gains vary with vehicle modifications)
- Mandrel bent 4" piping for a smooth transition to the exhaust system
- 100% 304 stainless steel construction
- 100% TIG welded
- Precision CNC machined turbocharger V-band flange
- Stainless steel flex section like the factory unit, allowing proper exhaust movement and flexibility
- Exhaust hanger like the factory unit to help support the exhaust system
- Finishes: brush or mirror polish
- Optional high temperature black thermal ceramic coating to reduce underhood temperatures (rated to 2000°F)
- Optional additional O2 sensor bung for wideband O2 sensors, supplied with a pre-installed plug
- Optional EGT sensor bung for EGT gauges, supplied with a pre-installed plug
- Compatible with the factory or aftermarket exhaust systems
- Made in the USA
- Warranty: Evolution Racewerks Limited Lifetime Warranty.
PARTS INCLUDED
- Competition Series 4" downpipe with stainless steel flex section and exhaust hanger
- All hardware required for complete installation
- Optional sensor bungs come with pre-installed plugs where that option is selected
TECH RESOURCES
Additional Parts Required
- None. Evolution Racewerks specifies no additional hardware for this part.
Installation
- Evolution Racewerks does not publish a downloadable installation guide for this part. Contact Evolution Racewerks technical support or Speed Logic for fitting guidance.
Notes
- Off-Road Use Only. Not CARB legal.
- Part number BM-EXH008S is Evolution Racewerks' 528i (F10) downpipe; the X1, X3 and Z4 applications are built as a separate part (Evolution Racewerks Competition Series 4" Catless Downpipe – BMW X1 / X3 / X4 / Z4, BM-EXH013S). Confirm which version your car needs with Speed Logic before ordering.
PART NUMBER
- BM-EXH008S — Competition Series 4" catless downpipe, brush finish
- BM-EXH008P — Competition Series 4" catless downpipe, polish finish
- BM-EXH008TB — Competition Series 4" catless downpipe, black ceramic thermal coating
VEHICLE APPLICATIONS
| Make | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| BMW | 528i | F10 | N20 2.0L Turbo I4 | 2012–2016 |