Quote:
Originally Posted by aclark133
Would this do more harm than good on a catless exhaust system? Or would any benefits not be worth the trouble of spending the time to wrap them up.
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The main problem with wrapped headers is too much heat build-up in the metal, which can cause it to crack. All metals weaken at higher temperatures, and stainless is better than most, but still not impervious. Stainless strength starts to fall rapidly above 1000 F.
I used to have wrapped stainless headers on my race car (Lola T-592S), but finally got tired of having to get them re-welded, and removed the fiberglass wrap, No cracking problem after that, and no significant Hp difference.
Definitely not worth it in my opinion.