X or H pipe?

I love my exhaust on my Bullitt....Mac O/R Prochamber with stock cat back...quiet when it needs to be but loud when i play with that loud pedal prochamber is a combo of the x and h in a way

H-pipe.
Especialy with flowmasters. Love that sound. I had shorty equals, off road h and 2 chamber flows with no tail pipes on my 87 years ago I could be heard from miles around.

X-pipe sounds terrible with flowmasters. Go with the h-pipe.

With Flowmasters I would definitely recommend an H-pipe. It will sound awesome!

I have a JBA off-road H pipe with the stock Bullitt catback. It is pretty 'cackly' in the 2000-2500 rpm range, but otherwise it sounds great. I wish I could smooth out the sound in that 2000-2500 rpm range though. I love the rumble when you let off, and it sounds great below 2000 and really good above 3000. Not sure if the Mac would sound different or not. Also, many people have said you need to replace the studs on the driver's side manifold with the Mac H pipe, but this was not an issue with the JBA. The JBA is also stainless.

VCal-Bullitt2567 said:

X-pipe sounds terrible with flowmasters. Go with the h-pipe.

Click to expand...

What?!

I have a catted x-pipe with flows and it sounds good. But I have the 50 series Flow's.

yes you do need to replace the studs on the drivers side flange.
i learned that the hard way and ended up spending a few days on the project.
also had a very hard time removing the bottom nut on the passanger side flange
the cats get in the way!
wish i would of known what i was getting into so i would be better prepared
glad they are gone now and everything sounds great
like i said before, H all the way

i didn't have to replace the studs on mine nor any of the 30+ mac mid pipes i've ever installed on 99-04 mustangs. they all came with a sleeve that you put between the pipe and the manifold and it takes care of the flange bottoming out

h pipe with flows for sure

I have an o/r x-pipe with super 44s and am happy with them. I wanted an o/r h-pipe, but the muffler guy ordered the x-pipe instead telling me that he always installs x-pipes on mustangs (they mostly work on mustangs).

But as you read, x-pipe will give you a more nascar raspy and h-pipe will give you a more deep, old-school muscle sound. I wanted the deep muscle, but am satisfied with what I got. Here's what it sounds like with the o/r x-pipe and super 44s though:




By the way, DO NOT do an o/r x-pipe with the stock mufflers. Sounds like crap, I did mine and at WOT it is terribly raspy and obnoxious. I did the o/r pipe then added flowmasters later. I would have loved an o/r h-pipe with the stocks though, because it keeps the same bullitt sound but makes it a whole lot louder.

OGBATMAN said:

What?!

I have a catted x-pipe with flows and it sounds good. But I have the 50 series Flow's.

Click to expand...

I started out with an O/R X-pipe and 50 series Flowmasters, but that sounded like ASS. I had to weld in a pair of high flow cats to tame the horrible raspiness at 1700rpm (cruising rpm). I would NOT recommend an O/R X-pipe with any of the chambered mufflers.

However, I have recently installed an O/R Mac Pro-Chamber with the 50 series Flowmasters, and I LOVE this set up. Although, I would go with Super 44s if starting from scratch.

I HIGHLY recommend the Mac Pro-Chamber mid pipe!!! :toocool:

I see everbody is sayin Hpipe, so with keeping the factory H with the mufflers would i still get a decent sound? Or if i left the stock H and cut out the Cats with the mufflers?

H FTW. only way to go.

I would upgrade to an o/r H-pipe...there a little over $100 and are bolt-on...that way you can keep your stock h-pipe just in case you ever wanted to go back or sell it all original. My stock h-pipe is still under my house wrapped in a trash bag :smile:

And one of us can have both, with a 2 minute turn of a wrench!

I have the Flowtech O/R H pipe. In regards to the studs, I just grinded mine down so the midpipe would fit right with the manifold. I really like the sound. Best $160 I think I have ever spent.

Mac O/R H-pipe with Flowmaster original 40's.

http://www.youtube.com/watch?v=KcSS73A9GwU

Scott