[CCLSVTM3]

I just got the Magnaflow catback system (used) mainly because of a really cheap price and I didnt want to spend tons of money right now... It sounds good, little drone below 2000 rpm, but it sounds awesome at freeway speeds.. The system itself was very light... I would guess around 20 lbs per side. I picked up the stock setup and that thing is heavy so I'm hoping it shaved of some good weight... The guy I got it from had a dyno sheet that he showed me and it listed a 19 hp gain.... It seemed like a lot but whatever, I can just hope... My question is why would the car feel slightly slower then how it was before I put the exhuast on??? It just doesnt seem to pull me back in the seat as it used to before the exhaust was put on... Or do you think its just me???