2024 X3 M40i Downpipe And Tune. 2024 bmw x3 m40i engine (ecu) tuning. 2020 bmw x3m40i with catless downpipe, mid resonator delete, bm3 stage 2 tune running e30.

A 300 cpsi stainless steel tuning downpipe (catalytic converter) for the bmw x3 m40i g01 without opf (gasoline particulate filter) can be combined with the bmw stock exhaust system as well. We have plenty of traction, just need more hp/tq.