NEW EXHAUST, HELP ME OUT!

[sil_stang02]

Im getting ready to buy a flowmaster exhaust for my car. I have a couple of questions, hopefully you guys can help me out. Ok, will it work if I buy a flowmaster exhaust system, FORCE LL DUAL SPLIT REAR EXIT ALUMINIZED STEEL 2 1/2INCH CAT-BACK SYSTEM WITH POLISHED TIPS, and Magnaflow cats 2.50" Exhaust Clamps? How much horsepower will I gain total? Last thing, is there anything else that i need to buy, like any kind of sensors for this set up?

Thanks for your help

 

[twogts4us]

The Force II kit for an 02 GT is #17267. The much preferred American Thunder kit is #17312. I'm not sure where you are getting the description from so I can't really comment on that. It is 2.5 inch that you want.
As you can see from the two pics below, the H pipe at the bottom bolts up to the exhaust manifolds, then at the other end, the cat-back system bolts up to that to complete your exhaust system.

http://www.flowmastermufflers.com/cgi-bin/flowmaster/search.html
Rather than buy cats, you really want a mid pipe, an H pipe is often preferred with (chambered) flowmasters. MRT makes a high flow catted H pipe for your car...here is the link--->http://mustangracing.mrt-direct.com/hpipe.php Best of luck and welcome to StangNet!!!

 

[sil_stang02]

So twogts4us , on this website that you showed me, the exaust shown in the website, would indeed be better thant the flowmasters and magna flow cats I had mentioned before?