Product details
OVERVIEW
Evolution Racewerks Competition Series 4-inch catless downpipe for the N20 four-cylinder in the BMW X1 (E84), X3 (F25), X4 (F26) and Z4 (E89). The factory downpipe is the single biggest exhaust restriction on these cars, and the ER replacement significantly improves spool and mid-range torque, especially on tuned applications.
SPECS
- T304 stainless steel construction, 4" body
- Competition Series: catless design for maximum flow
- Finish options: Brush, Polish or Ceramic Thermal Coating (black)
PARTS INCLUDED
- ER Competition Series catless downpipe in the selected 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): Bootmod3 N20/N26 Tune – BMW 228i / 328i / 428i / 528i (F-Series) (X3 F25 / X4 F26 only).
Installation
- Evolution Racewerks does not publish an installation guide or video for this part.
- Contact Speed Logic for installation support or fitment questions.
Notes
- Off-Road Use Only. Not CARB legal.
- Sports Series 4" high-flow catted version (BM-EXH013SCAT): Evolution Racewerks Sports Series 4" High Flow Catted Downpipe – BMW X1 / X3 / X4 / Z4 (E84 / F25 / F26 / E89, N20).
PART NUMBER
- BM-EXH013S — Competition Series 4" catless downpipe, Brush finish
- BM-EXH013P — Competition Series 4" catless downpipe, Polish finish
- BM-EXH013TB — Competition Series 4" catless downpipe, Ceramic Thermal Coat Black finish
VEHICLE APPLICATIONS
| Make | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| BMW | X1 sDrive28i | E84 | N20 | 2013–2015 |
| BMW | X1 xDrive28i | E84 | N20 | 2013–2015 |
| BMW | X3 xDrive28i | F25 | N20 | 2011–2017 |
| BMW | X4 xDrive28i | F26 | N20 | 2015–2018 |
| BMW | Z4 sDrive28i | E89 | N20 | 2012–2016 |