OVERVIEW
Evolution Racewerks Sports Series 4-inch high-flow catted downpipe for the N20 four-cylinder in the BMW X1 (E84), X3 (F25), X4 (F26) and Z4 (E89). A high-flow catalytic converter replaces the restrictive factory unit, improving spool and mid-range torque on tuned cars.
SPECS
- T304 stainless steel construction, 4" body
- Sports Series: high-flow catted design
- Brush finish (S)
PARTS INCLUDED
- ER Sports Series high-flow catted downpipe, Brush finish
- Required gaskets and hardware
TECH RESOURCES
Additional Parts Required
- Supporting tuning is REQUIRED after installation to prevent check engine lights and realize the performance gain (sold separately).
Installation
- Installation guidance available through Evolution Racewerks technical support.
Notes
- Sports Series high-flow catted downpipes are intended for off-road / race use; check your local emissions regulations before installing on a street-driven vehicle.
PART NUMBER
- BM-EXH013SCAT — Sports Series 4" high-flow catted downpipe, Brush finish
- Competition Series 4" catless version — BM-EXH013S
VEHICLE APPLICATIONS
| Make | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| BMW | X1 sDrive28i / xDrive28i | E84 | N20 | 2011–2015 |
| BMW | X3 xDrive28i | F25 | N20 | 2011–2017 |
| BMW | X4 xDrive28i | F26 | N20 | 2014–2018 |
| BMW | Z4 sDrive28i | E89 | N20 | 2011–2016 |