[z3pr68138]

I run duel exhaust 2.25" to just before elcheapo Thrush turbo mufflers where it steps up to 2.5" after 2.5" in/out mufflers it steps up to 3" and exits out sides in front of rear tires. Sounds great, preforms even better. Did that 3 years ago. Truck was stolen and the bastards cut the cat converter off right at Y-pipe so couldn't just patch exhaust system back together. Just cut Y-pipe off and welded up new pipes off down pipes. Haven't gotten around to installing headers on this K5 yet, but have on all the other K5's I've owned, so this one will get a set sooner or later.