Re: Official Exhaust Clip Thread!!!
It would be unusual to only replace the Cats. Stock exhaust for 8L is only 2.5". Replacing the entire exhaust is a good uprade and greatly improves the sound, cabin heat and performance. Most Hiflow cats are 3" although there are certainly some small engine 2.5" hi-flow cats.
Seems 'mickey mounse" to only replace the stock cats. Decent cats could be purchased and adapted up to 3" and then back down to 2.5", but as that isn't exactly optimum for performance very few people would cahnge one part of a stock exhaust system. At the least almost everyone (ever ricers) change to Catback as those systems advertise the big hp difference. Probably not much difference for $300 (plus labor) just to change Cats and reduce some cabin heat.
Ted
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Roe Supercharged 01 Sapphire GTS, M2 built 720rwhp. rest-mod 440 Duster 4sale, '92 IROC R/T 4sale, 71 340 Demon project 4sale.
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