Evolution Racewerks Sports Series 4" High Flow Catted Downpipe – BMW 230i / 330i / 430i / 530i / X3 30i / X4 30i / Z4 30i (B46 US Spec)

OVERVIEW

Evolution Racewerks Sports Series 4-inch high-flow catted downpipe for US-spec BMW models with the B46 four-cylinder. 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
• Finish options: Brush, Polish or Ceramic Thermal Coating (black)
• Two versions by build date: 2016-09/2020 and 10/2020+

PARTS INCLUDED

• ER Sports Series high-flow catted 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 B46/B48 Tune – BMW 230i / 330i / 430i / 530i (F/G-Series) (not Z4 G29), or Burger Motorsports JB4 Tuner – BMW 320i / 330i / 430i / X1 / X2 (B46/B48).

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.
• Select the version that matches your vehicle build date (2016-09/2020 or 10/2020+).
• Confirm region spec and OPF presence before ordering — US and EU/Asia versions are not interchangeable.
• Also available: the Competition Catless Downpipe – BMW 230i / 330i / 430i / 530i (B46).

PART NUMBER

• BM-EXH019SCAT — Sports Series 4" high-flow catted downpipe, build date 2016-09/2020, Brush finish
• BM-EXH019PCAT — Sports Series 4" high-flow catted downpipe, build date 2016-09/2020, Polish finish
• BM-EXH019TBCAT — Sports Series 4" high-flow catted downpipe, build date 2016-09/2020, Ceramic Thermal Coat Black finish
• BM-EXH031SCAT — Sports Series 4" high-flow catted downpipe, build date 10/2020+, Brush finish
• BM-EXH031PCAT — Sports Series 4" high-flow catted downpipe, build date 10/2020+, Polish finish
• BM-EXH031TBCAT — Sports Series 4" high-flow catted downpipe, build date 10/2020+, Ceramic Thermal Coat Black finish

VEHICLE APPLICATIONS