Originally Posted by Abenitez
Thanks for the feedback guys. Wasn't sure if anyone in the past had tried it or not so I was curious to see what everyone had to say. I was expecting everyone to not suggest it but hey, you never know. I'll stick to stage 1 till I get DP's
If you are worried about your warranty but need more power start with FMIC. the ETS 5" fits with no cutting and looks very close to stock. It has super good reviews.
COBB are releasing the stage 1+ soon and with an intercooler you'll be able to run these new maps
SOLD --'07 E90 335i, PTF COBB E50, HFS4, ER CP, ETS 7", AA DP, Vishnu Exhaust, DCI, ACT, Nitto Nt555
SOLD '10 E92 335i M, 6MT COBB v3, ER IC, ER CP, VRSF DP, Fuel-it st2, Mfactory LSD