3 inch to a 2.5 or 3 inch all the way exhaust.

[pj91gsx]

I bought a 3'' downpipe 3'' cat a reducer pipe from 3 to 2.5 and a cat back exhaust with 2.5 '' piping a year ago. Now I have greatly improved my set up and I have never used the cat or the catback exhaust. I just ran the downpipe. Am I better off selling my catback and just going with a 3'' all the way or should I just use the reducer pipe and make my exhaust go to 2.5''? Would the exhaust sound better going to 2.5, would going to 2.5 take away a lot of performance? I will I have to cut my catback if I want to make it work with my downpipe and cat.

 

[slowgsr]

The bigger the better, definatly go with a 3", if you can go from 3" to a 4" back exhaust.

 

[dylan702110988]

3in all the way!

may i ask why u want to go from 3in then down size to a 2.5???

 

[pj91gsx]

ok. any other opinions. Will the sound qualilty change from from 2.5 to 3"?

 

[mndsm1]

definitely a 3" all the way

 

[pj91gsx]

I bought this stuff a year ago. I didnt even have a motor in my car when I bought it. I got too excited before I started working on my car.

 

[pj91gsx]

I paid 198 and it came to me all dented up because it was shipped from California. I guess I will sell it to one of my friends with no mods. He will probably enjoy it. Also, I order the downpipe on ebay and it was listed wrong. Its said 1g downpipe for a gsx. It is really a 2g downpipe for a fwd turbo. Did you guys notice? What kind of muffler should I get if I just get the pipe to the back?

 

[mndsm1]

ok. any other opinions. Will the sound qualilty change from from 2.5 to 3"?

it will most likely get a little louder..depending on if your running a resonator or not or cats

 

[pj91gsx]

The cat is straight threw. Its pretty massive too.

 

[Spyder4g64]

3"+ all the way..

 

[mndsm1]

imo. i personally love the sound of a dsm without cats or resonators, but not everyone might. im on a 2.5" with a resonator before the outlet so it quiets down the exhaust a little, but a 3" no cats/resonators will be on soon. it will help you out performance while in the long run also

 

[pj91gsx]

Thanks for the help.