Originally Posted by mtn335xi
I have been reading quite a bit in the forums to get a sense of what folks are doing.
What would be your recommended first mods for our mile high altitude?
It appears there are quite polarized camps in the forums but what works better up at elevation, PROcede or JB? Other?
Do you guys use Bimmerhaus or someone else in Denver who specialized on 335 aftermarket tunes, etc.?
Thanks for any input.
Not sure who everyone has used for mods - but I got really good treatment at MAC in Parker. The mostly do STI's and Evo's.