NKGT

Hey guys, I'm tired of my 2000 GT's stock sound so I'm getting a nice new exhaust setup. I decided to go with Flowmaster 40s (dual chamber) mufflers. A bunch of guys from the local Stang club have them and I just love the sound. As for the midpipe, I like the sound of an H pipe over the sound of an X pipe. I was leaning towards a Mac O/R Prochamber. That should empty out my Mustang fund so the headers will have to wait.

My questions is about the midpipe.I plan on getting shorty headers eventually but for the time being will a aftermarket midpipe line up with the stock manifolds? Also, what do you guys recommend as for an H-Pipe? I'm looking for a nice deep, clean sound. And last, if I decideto stay legal and get a catted H-pipe will there be much of again versus the stock midpipe?

Fleet99GT

I have the flowmaster 40's with a bbk o/r x-pipe and love the sound. If you perfer an h-pipe I'd still look at bbk. If you go legal you will still get gains because the aftermarket mid pipe will only have 2 cats vs the stock 4 and you will probbly save some low end torque. The aftermarket mid pipe will bolt up just fine with stock manifold it will likely be just ball and socket.

marseea1

just recently put 40's on my mustang with an o/r mac H-pipe. I love the sound. I paid 180 for the h-pipe new. i was looking at the mac pro champer also but the cost was near 100 more so i went with the h.

35thAnni99GT

Make sure you get an "Original" Flowmaster 40. The American Thunder and Delta series 40's suck major ***.

72MachOne99GT

Don't waste your money on shorty headers, theres not much of a gain at all over the stock manifolds. If you're going to pay money for headers, make sure they're long tube, and honestly, if you're only wanting sound, they're not worth the money + install.

Stick with your flowmaster catback (endless debates over which one is best will insue) and go with some sort of uncatted midpipe. Either a MAC o/r H, or prochaber is most likely what you want based on what you've suggested already.

Again, no shorty headers, just go with a midpipe/catback combo.

But yes, an aftermarket midpipe will fit up fine with the stock manifolds.

NKGT

Thanks for the advice guys, I'm leaning towards the mac o/r prochamber. Can't wait!

steedondubs

I have a BBK O/R H and Flows. Its deep as hell. But I also have dumps... Screw a catback

NKGT

I just don't want a raspy sound. Hopefully an O/R H Pipe will soundgreat.

ShadowDrake

I have original 40's and an O/R prochamber. Best. Sound. Ever.

Hands down, no questions asked.

I don't have any exhaust clips around, I guess I will have to go out and get some tomorrow

Best I have are some videos on facebook from auto-crossing (gives you a great impression of the sound though). If you've got a facebook, take a look:

First one is the best, there was a subaru in front of me at the beginning of the video, which explains the awful noise [8D]

http://www.facebook.com/video/video.php?v=2439764160

http://www.facebook.com/video/video.php?v=18512659160

http://www.facebook.com/video/video.php?v=18624664160

98MustangGT46

Click the clip in my sig. Its BBK Catted X Pipe and Flowmasters