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07BlueBeastGT · 02-22-2008, 12:51 PM

i have an 07 GT 5spd i wanna put 18 x 9.5 rims on it over the stock 17 x 8's. does anyone kno what i would have to set the revs to on the xcal for my speedo to be exact?... tires im gonna use are 275/40-18

02-22-2008, 12:51 PM	#93 (permalink)
07BlueBeastGT Junior Member Join Date: Feb 2008 Location: Long Island Posts: 16	tire size? i have an 07 GT 5spd i wanna put 18 x 9.5 rims on it over the stock 17 x 8's. does anyone kno what i would have to set the revs to on the xcal for my speedo to be exact?... tires im gonna use are 275/40-18