BMW F87 M2 Active Autowerke Downpipe

Active Autowerke N55 Downpipe - BMW F87 M2 (N55)
Part Number: 11-040A

Free Up That Single Turbo

The N55's factory downpipe is the bottleneck. BMW built a solid single turbo setup, but that restrictive factory pipe holds back spool and kills power potential. Active Autowerke's been tuning BMWs for over 30 years, and they know exactly where the N55 needs help.

Their Signature downpipe opens things up with 3.5" diameter 304 stainless steel construction, using minimal bends to keep exhaust flowing as efficiently as possible. The key difference here is the 4.5" GESI high-flow catalytic converter - it's EPA compliant and won't throw a check engine light. The GESI UHO-Series cat uses advanced precious metal loading technology that cuts emissions while flowing significantly better than stock.

Real World Benefits

Quicker turbo spool, more power and torque throughout the rev range, better throttle response. The difference is noticeable whether you're daily driving or pushing hard. Active Autowerke designed this with drivability in mind, not just peak numbers. No tune required.

Built to Handle Power

This isn't a budget piece. The cat is rated to handle exhaust temps up to 1500°F and supports engines making 500-850hp. If you're planning serious power upgrades, this downpipe won't be the limiting factor.

Installation is straightforward - bolts directly to factory mounting points, no cutting or welding required. Comes with all installation hardware.

Active Autowerke backs this with a 5-year/50,000-mile warranty on the shell and tube ends, plus 2-year/25,000-mile coverage on the catalytic core.

Perfect foundation mod if you're planning on tuning the car. Even better if you're already running upgraded turbos and need the exhaust side to keep up.

Fits 2016-2018 BMW F87 M2 with N55 engine. Also compatible with F22 M235i, F30 335i, and F32 435i (2013+ with N55).