100% REVERSIBLE, always able to go back to stock at any time
Fitment
2015 - 2018 BMW M3 F80
2015 - 2020 BMW M4 F82
2015 - 2020 BMW M4 F83
*NOTE for all S55 OWNERS* Due to this system being unresonated, the “2k rasp” certainly can be present on a race, free flow downpipe setup when shifting at very low rpm’s. While OEM downpipes aren’t very restrictive below 700hp on factory turbos, in our experience 200 cell or similar high flow cat will provide the most refined sound experience while adding volume over stock downpipes if you’re looking for an additional upgrade in flow and or sound.