i had a stock ss/sc

just put a hahn 3inch catback on it it feels slower am i seeing things or is this possible its supposed to add 10 to 12 HP ??

 

i think it adds hp up on the top end. but you might have lost mid range torque cause 3" is too big for a stock ss s/c

 

yea defff what do i need next to get all my tourquee back to where it needs to be??

 

3" is to big.
you would have definately lost torque
unless your pushing some serious power....or go turbo....

 

2.5 should be good

 

well i deff wanna keep my hahn caussee its kick ass soundingg and i can feeel it when im on the fly but i lost my tourquee so im kindaa lagging in the beggining wat upgrades should i get nextt ??

 

take off the exhaust... or add more goodies.. take your pic

 

you still have the same power, it's just moved up in the power band.

my car starts going ape **** about 4500

 

CAI , DownPipe i should be Straight??

 

no you should definitly go with injectors and a pulley, doesnt matter if its GM stage 2 (recommended) or 60lbers with a 2.8 and tune. Either way you need to be getting more air in now that you have to ability to get it out.