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Put stock muffler back on and......


03_SILVERADO_SS.

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The milage went from 12.9 to 14.0???? Changed from a magnflow muffler cut in the stock system back to the stock muffler. Strange????? The worst part is it seems to run better, but now I remember why I changed it.  Too Quiet!!!!! :D

I took my muffler off and gutted the cats and im getting 10 :)

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holy crap that sux!  have you verified it at the pump or just going off the DIC?? that thing isn't too accurate.   I'm about ready to gut my cats... maybe I shouldn't

 

I did get a bigger cam, larger injectors and a turbo as well :)

Did you finally get your turbo and its installed?!

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  • 3 weeks later...

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