Hello everyone! Just purchased an 07 space gray 335i coupe 6MT and loving it so far. I've done a tiny bit of research on the upkeep of these machines (HPFP, valve springs, etc) and was wondering if there is anything in particular I should know about mechanically?? My car has 60,150 miles and I'm close to deciding on an aftermarket warranty. I've owned a twin turbo in the past (2JZGTE 04' Supra) and might have just been bitten by the mod bug again as well. Any reccomendations for basic power upgrades to get me near the 400hp mark? Thanks in advance for any help!
-JT