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Re: Turbo/exhaust mani for my car
The 5858 has the new CEA exhaust wheel and is rated to 620, PTE seems to be rating their turbos conservatively these days as well.
If that is your true goal the 5858 should do that on corn, however shane did tune a SCM5857 on a 2.3, I think at 30psi it did 500whp on a dynojet, but you still have boost to play with.
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