!exhaust Question !

[o7S-line]

ok i have a b7 a4 and i want a 3 inch exhaust setup with the downpipe and the whole nine yards but ! will my check engine lite come on and will i pass emmissions ..and the downpipe has both o2 senors and is catless .thanks

[viperdsa]

Is your car a tip? And you will have a hard time finding an exhaust that is 3" all the way. Yes, you will still pass emissions the cat isn't part of the downpipe, and no you shouldn't get a CEL.