Quote:
Originally Posted by 2023-SS
why did you not want headers? they seem like the FIRST thing everyone does.
I really some on my SS, but IDK if i want to take it apart, it just feels good & reliable now.
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Honestly because headers make these cars extremely loud which is something I got tired of in the ZL1 and not something I wanted in the Blackwing. Another reason is that for my goals of around 700whp, the stock exhaust manifolds aren't as restrictive as people think they are at that level, and the stock manifolds are a tri-Y design which typically makes more power under 6K rpms. A 4 into 1 header design will make slightly more peak power but it typically comes around 6K+ rpms.
Case in point, my car made 722whp with the stock exhaust manifolds and cats. The Blackwing in the link below made almost exactly the same power but this car has headers and no cats and all other mods being the same as mine. FHP is a very good shop in Florida so I trust their results.