Headers and Exhaust Smell Question
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Instructor
Joined: Oct 2006
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Headers and Exhaust Smell Question
After much searching there seems to be a wide range of opinions as to what causes this. My $0.02 is that its mostly related to NOX, partially from high flow cats and partially from lack of tune.
I have an 07 coupe but only drive it with the windows down and top off.
Has anyone done a headers install on an LS2 and not get the excessive exhaust smell? Are there different types of high flow cats? Do some do NOX better than others?
I have an 07 coupe but only drive it with the windows down and top off.
Has anyone done a headers install on an LS2 and not get the excessive exhaust smell? Are there different types of high flow cats? Do some do NOX better than others?
