Hi All! My 2014 black on black x1 35i Msport is nearing the end of its warranty, so I am looking into finally starting some mods.
I daily drive this car and am looking for power and handling upgrades. I could spend 2.5k or so. The wrinkle is that I am totally unwilling to delete cats, or otherwise alter emissions such that they would not pass a sniffer test. Just my personal stance, yet I still want to increase power as much as possible.
I have read up quite a bit on modifications, but I haven't found much advice for the odd person like myself, concerned about the environment and emissions yet still desiring to max power
Possible upgrade path based on my research, (please advise):
1) JB4 and chargepipe
2) Bilstein/H&R for handling upgrade? (Don't care about lowering for looks sake, just performance)
3) FMIC (if I never plan on catless DP, is this a waste?)
4) Intake (is the intake purely a sound modification, or does it add noticeable power?)
5) High flow cat downpipe (would this still pass sniffer test)?
6) ???
If it was your money and your were also a tree-hugger who liked to go fast, how would you spend the 2.5k? I can do most installs myself except perhaps front suspension.