2.5 inch piping with high flow cats....(flowmasters)
for 360 dollers is that a good deal?
what are avg gains i can expect with this?

 

Is this a header-back or a cat-back system? Even if it was just a cat-back, as long as the tubing was good quality it sounds like a decent price.

For a cat-back, its been documented on here that you could get 10+whp.

 

without header... its jsut the cat back system so i was jsut wondering if it would sound good and if it would give good gains.

 

Like he said above, if the exhaust is of good quality and you use a nice muffler then it will sound and perform nice. Going with 2.5" is a good choice.

 

well my friend put it on 02 his mustang gt (bigger pipin tho) ran 13.7 and thats all that was done to his car so thx guys for the help

 

Also, does the exhaust tubing have crush bends or mandrel bends? That would also make a big difference.

 

eh no idea...could u explain each

 

With crush bends, the tubing is simply bent "normally" which causes the tubing on sharp bends to kink and actually decreases the diameter of the tubing. When tubing is mandrel bent, there is something inserted into the tubing which keeps it a uniform diameter all the way around the bend.

Here is a picture of a crush bend:



I hope that helps.