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An emissions chip, from the old "prom" days, cuts fuel like crazy, gets rid of any dtcs, stock or you could have one burned for you.
Also, you MAY need an air pump, depending how anal they are with the visual.
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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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