having trouble deciding what exhaust to put into my car. i was originaly goin to buy a flowmaster thunder catback exhaust but seeing others made me wonder. im lookin for performance wise sound does matter not as much as performance. somone suggest kind of brand to get?

 

Full Mac system sounds fantastic.

Slp loudmouth if you want really loud and want to attract lots of attention.

As great as the old flowmaster mufflers used to sound, their new stuff doesn't have the same tone and attitude.

 

I saw a power comparison a couple years ago on various mufflers and flowmaster was one of the worst and magnaflow what at the top of the list. Ill be damned if I know where I saw it but thats one of the things that really stood out to me. Magnaflow wont be as loud (thats what I have) and it will be one of the more expensive but it will net you the most power.

On a side note I dont think SLP was on there so I dont know what that would do power wise.

 

i like my Borla's but they are way louder than stock exhaust inside the car. ppl say they still don't hear me coming down the street, not that i want them to, but i got stock motor and do feel a bit of horsepower gain. They got 4" tips so could be a touch louder outside than stock 2.5" exhaust.

 

+1 on the Mac, I have the catback and it sounds phenomenal.