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
E90s (been gone but not forgotten) • KW clubsports • • • • • • • • • • 18" BBS GT4 // Build E30 (pending) + E46 M3 Wagon ESTORIL Blue