Quote:
Originally Posted by cLaWz
So what would everyone recommend for a pretty much stock 454? 2 1/4, 3?
I believe it has 3 on it now but the pipe is in bad shape and has glasspacks that dump right before the rear axle. Hate the sound of it :\
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Most stock 454's seem to come from the factory with a 2.5" system. If you're staying stock and running duals go with 2.5, high flow mufflers and run the exhaust over the rear axle. Dumping exhaust gases under the truck isn't a sound practice IMO.