2024 X3 M40i Downpipe And Tuner Upgrade. Generally speaking the top map is ~+3psi over stock. After driving stock for all these miles, i'm getting an itch to do the basic mods to make it pleasantly more.
We offer a performance exhaust for the bmw x3 x4 m40i with a sound that has to be experienced | 4 outlets | 2 exhaust flaps | carbon tips | fits lci models. I love having the weight and traction of awd in my x3 m40i.
