catless DP for the n55 - 2nd performance mod to increase max hp.
will throw a CEL on the dash.
will be smelly if u roll down your windows.
the power gains is excellent.
with the HFC (high flow cats) should eliminate the
DP looks great Challenge - do you have any install picts
for these guys to see.
with any performance mod'n, it's at your own risk.
just research and know what you're getting into.
FrankiE90 AKA:.[The TANK] *CLICK THE SIG
2011 335 E90 MTECH 6MT • KW V3 • INJEN Intake • Berk 4" DP • Vanguard V2 exhaust • Procede V5 • Stoptech BBK • RPI Scoops • Karbonwerk CSL Trunk • LUX H8 • 19" BBS LM • 18" BBS GT4