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I drive the car every day. mix of city and hwy. Stock I got 12.8 avg, KN filter and cut big hole in front of airbox i got 13.9 avg, Rotofab I am now getting 15.5avg.
I am hoping that loosing the cats and getting long tubes will increase it a bit more. On my 2006 Z06 with no cats, intake and LT, I would get 33pmg when cruising at 60mph.
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Rotofab, grinding rear diff sound forever, dealer replaced supercharger - now i have a rattle when starting from a stop, ordered 2.35 lingenfelter pulley, hp tuner, belt, 100mm idler pulley, tr7IX spark plugs, wideband kit, long tubes with no cats...hoping for 650hp. dyno with rotofab = 518hp |