Whats the difference between a catback exhaust and like a regular high flow exhaust or something, and which provides more flow. im talking about like full exahaust, not just mufflers.

 

a full exhaust is gonna provide more airflow than just a catback....a full exhaust consists of headers, then midpipe, then your catback. a catback is the pipes that connect to the midpipe and are the inlet and outlet of your mufflers.

 

A cat-back is just the rear end of the exhause, starting from the catalytic converter. Just doing a cat-back has the potential to increase power in many OEM vehicles.
A "high flow" exhaust can really be anything that has a pipe diameter larger than OEM specs.
A FULL exhaust is the one mentioned in the above post. It will produce the most significant gains and change the sound of the exhaust dramatically (generally).
In the GT's, it is pretty amazing what replacing the mid-pipe and cat-back exhaust does to the performance of the car. Gains are noticiable from the start.
Personally, if you are going to mod your car, I would suggest the full exhaust option which will include the headers.

-Nicholas

 

well... i was thinking of getting some longtube headers and a cat back kit and having the local exhaust shop fabricate everything between the two. thats what they did with the 69 and its quality work, cept they made the entire exhaust. is that a good idea, or would it be better to just get the headers and have them make everything else?

 

i think you would be better off buying all the parts. they would be made at a large factory with mendrel bending machines and everything will fit together perfectly.

 

Its not the fit youre after, its the tuning of exhaust system, positioning of x pipe should be presice for maximum gains. Go with a complete kit, dont mix and match parts. Mufflers you can mix and match.

 

lol, at the muffler shop im talking about, they bend all of their own tubing, its pretty cool to watch, what mufflers do you guys think sound good on the gt's im thinking of going with either Bassani....somethings, Borla...something else or SLP resonators wither loud mouth I or II

 

Id go either SLP Loudmouth 2's or Magnaflow. Both sound great.

 

I had the muffler shop make my cat-back out of there mandrel pipes. very nice and cot effect for my nissan BUT a shop cant make a mid pipe you have to buy yours.

 

i beg to differ, they made a midpipe on the mach, so we could service the tranny.