Yea you wont really c any gain in power but will sound better.The only time it mite help u if u was pushing a lot of hp and compression(400-500hp)

 

yeah in that case you should go with a 3" system if you're gonna push a lot of boost or compression w/ N20. But if i got a 200 shot i doubt going up to 3" will help me much at all

 

Just like everyone else is saying, replacing the catback system really isn't going to release too much power. The sound itself is worth the money though. On the other hand an O/R h or x-pipe will definitely get you a couple of ponies back. Just my 2 cents: If your doing catback, definitely look into Borla Stingers.

 

im not attending on pushing alot of boost and compression,the only thing i will do beside my mods in my seg is vt cam stage 1 and a
tuner.
but sure the sound will worth it!!

how about mac catback?i respect borla but NOTfan of it, becouse people around here 80% of them use borla system, i want somthing differents [:-]

 

I've heard a lot of good things about MAC catbacks.

 

but comparing with flowmaster, which one have the best sound?

 

the macs sound good, im not really a fan of flows either, your best bet would be to go listen to diffrent clips and see what you like because people on here are just going to tell you what ever they have is the best

 

+1

Pick your mufflers/catback for the sound you like, its not going to show much/any performance gain.