i had it and was not impressed with it,felt the same as stock,,, car stunk like gas I HAVE INJEN CAI and BERK HFC ,,,after the UPREV CUSTOM TUNE i made about 25WHP EXTRA and the car runs AMAZINGLY
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08 G37s 6MT//UPREV//INJEN CAI//BERK HFC//20%//BATOVERLAYS//EIBACH//GTSPEC/
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