Sam very nice set up.
it appears that the SC works better with stock factory back presure. The only mod that will help it is a CBE.
On my 350 z with the stillen i lost 10 with the headers and 6 rwhp with radom cats.
it lost 1.5 lb of boost on my 5 AT,
the same rules seem to apply with the 3.7 VQ.
I estimate that 's about 30 rwhp on your set up.
it looks like the cats, and maybe stillen headers will be coming off my car soon
Z.
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 12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.
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