Still significant gains with header mod & stock exhaust?

[Redeye]

I know that switching to aftermarket headers, like Comptech, RM, DC Sports, makes significant gains in Hp with 91-96 NSX's. Are the gains still significant if the header switch was made but the stock exhaust was still used?

Thanks!

 

[ScienceofSpeed]

There will still be hp gains with this setup, however, as you can imagine, the gain will not be as high if the stock exhaust is maintained. I would take a stab at RWHP of about 15-20 HP.

Regards,
-- Chris

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