I know everyone is anti fart cans but on my grand am I ran 3.0 piping from the manifold out to 3" inlet 4.5" outlet fart cans and the car sounds awsome. it doesnt crackle at high rpm's, it has a nice deep throaty tone to her and is quiet with casual driving but grunts real nice when you get on her. I also ran duals on her to quiet her down some.
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