BMW 4 F32 Muffler Deletes & Resonators

When it comes to exhaust upgrades on the BMW F32, you've got a solid platform to work with, and the aftermarket support is excellent. For the 428i and 435i variants, popular options include cat-back systems from Burger Motorsports, Remus, and Eisenmann, all of which deliver a noticeably more aggressive exhaust note without crossing into obnoxious territory. The Eisenmann Race system is particularly well-regarded on the N55-powered 435i, offering a deep, refined tone that suits the grand tourer character of the coupe. If you're chasing real performance gains, pairing a cat-back with upgraded downpipes - catless or high-flow catted units from MMP or Active Autowerke - is where you'll see meaningful power improvements, especially on a tuned car. Valve-controlled systems like those from Remus or Borla allow you to toggle between a subdued daily-driver tone and full-volume mode, which is genuinely useful. Before purchasing, verify the specific exhaust tip orientation and cutout position for your model year, as F32 fitment can vary slightly between pre-LCI and LCI builds, and a mismatched system will require modification to sit correctly.