ok i have flowmasters installed on my car. well just the muffler anyway. i just purchased a hooker aero chamber muffler. the flowmaster is the 40 series. i am not to sure what series is the hooker aero is. no my question is which one is the better sounding, performance, and etc. i took my car to this muffler sjop an they said that they both are the same and would sound the same and gain no perfomance from the hooker aero. is this shop just being too generious. they did not want to charge me to put that on because both muffler are the same.

 

They're being honest with You. Damned hard to find these days.