Originally Posted by benzy89
You can, but it'd be better to run with a drop-in filter (K&N, aFe, MS) or DCIs (BMS, ETS, Vishnu). Both are less than $100, so it won't break the bank
I agree with Benzy, an intake would help. I'd personally go with drop in for now. I don't like DCIs...
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