Active Autowerke Downpipe Exhaust Upgrade, BMW S58 F97/F98 X3M/X4M (11-064X) _8V0698151G Anti-Lag/Rotational idle - for closed

Anti-Lag/Rotational idle - for closed course racing

and are covered by K&N's No-Hassle Lifetime Limited Warranty

It features a black powder coated hollow aluminum bar welded to solid ends to keep weight down and offers a classic minimalistic look

Vehicle specific reservoir mount kit included

Active Autowerke Downpipe Exhaust Upgrade, BMW S58 F97/F98 X3M/X4M (11-064X) _8V0698151G Anti-Lag/Rotational idle - for closedThe Active Autowerke Downpipe Exhaust Upgrade is designed specifically for the BMW S58 engine found in the F97 F98 X3M and X4M models. It addresses the restrictive nature of the OEM downpipes to improve exhaust gas evacuation and turbocharger responsiveness. 3 inch diameter stainless steel piping for improved flow and durability Incorporates stainless flex joints transitioning to 70mm diameter to match the OEM exhaust system, never dropping below