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My 87 SS, Carb passes emission with tuning and cleaning out the EGR. And It has a gutted cat that I didnt know about until after.
If its TPI, get an emissions chip...
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1999 Z28 Convertible. 6 speed swap, wide cowl hood, full hockey stripes, and a whining 10 bolt.
2008 Sierra Vortec Max. 6.2 swapped, headers, Magnaflow catback, GMPP CAI, NHT optioned tow package.
2006 GTO, 11.48 @ 118.3
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