[jeff983000gt]

first off..i did not add manufactors hp "claim to get gain" i put realistic gains in perspective..next..i did put turbo borla exhaust on..i agree NA ones do suck..i have one cat on the whole exhaust and one muffler for inspection reasons..otherwise im running full 2 1/2 exhaust..downpipe included..next base model throttle bodys are 49 mm..do your research..so upgrading to 52 is pretty decent..the guys who ported my heads are the best around my area..there was PLENTY of room for improvement in the heads..at least 30-40 hp gain in just head porting..so i would say with all my other upgrades i have at least another 10-20..the numbers add up..can you count???