Hello...drove off the lot with a 15 Xse 4-banger this week...traded in an 07 bow 335i
Are their factory approved engine (performance) mods available for this motor???
I did read that TRD had something in the works??

 

Did you ever get any feedback on your question? I too have a 15 XSE, looking to make it a bit more responsive.

JL

 

TRD has exhaust, air intake, suspension, brakes. Not internal parts.

Doubt the exhaust or intake will make much of a difference.

 

Thanks toyomoho. I did install a cold air intake on my XSE. It has improved the MPG a bit. Still have sluggish throttle and the shift points are too quick, but, I guess that's the way the cookie crumbles when you go from a V6 to a 4 popper.