The X-pipe configuration, as mentioned above, will have an effect on the sound. If you like a deeper tone, I recommend looking at these systems. Scott Hoag, the MRT owner and founder, was a Team Mustang engineer on the '01 Bullitt and '03/'04 Mach 1 programs.

On the 5.0 engine, I think these 2 have the deeper tone with limits to the resonance sound at the critical 2000 RPM cruising point.

stock H-pipe w/MRT axleback
MRT H-pipe & cats w/MRT axleback

 

Very impressed with the fit, finish and overall quality of their pipe. No issues during install, no leaks. I do need to get a vid or two of the new exhaust.

 

I was thinking the same thing as you, wanted a little more sound from the car with the GT 500 mufflers. Went with the JPC o/r X pipe and just used it as a replacement of the H pipe. Still stock mid pipe forward. I cant tell any difference in the sound from the interior but youre right! most of the popping decel. sound is gone, happy about that. Also I couldnt believe how restrictive the oem H-pipe was. Didnt measure it but it seems a good section of it shrinks down to 2.25". Still waiting for there OTA pipe to get back in stock, to eliminate the resonators/kinks. Maybe that will be the sound combination Im looking for while getting rid of the restrictions.
http://store.jpcracing.com/JPC-Racin...e-_p_1473.html

 

You using the JPC OTA pipes? I'm thinking of getting the lethal o/r H pipe and JPC OTA pipes. These should compliment my GT 500's nicely. I'll deal with the CEL until I get CAI & tune this winter.

 

No, Im using their O/R X pipe as a replacement for the oem H-pipe. I just plugged the 02 bung. Reading alot of misfitments with the FRPP X-pipe, so I went with these. Easy fitment due to modular pieces, and when I decide to buy their LT headers, I can buy the catted legs to swap out the section on this pipe.The OTA jpc pipes should be back in stock in a couple weeks. Planning to get those also..keep you informed when they get them in on the shelf....

 

They look awsome.

 

I have fallen in love with the quad exhaust boss setup. Thanks a lot guys... Now to find 699 bucks... Lol.

I am just worried about the install. Sounds like I have to take it to a shop.

 

Im pretty happy with how smooth the install went, found this on another thread in case you havent caught it.. looks to shave 11 lbs total also while gettin a bit more sound with less restriction...
http://www.svtperformance.com/forums...ipes-test.html

 

thats cool man, I also read the whole thread on the Boss retrofit kit and alot of people seems very happy with it. But.. Im not gonna let you give up on your original idea LOL.. Im leaning also towards improving sound, weight loss, and less restrictions for the same money, added power wouldn't hurt either

 

Stock h-pipe pic for reference and agree it's probably 2.25" at the smallest. Surprised a consistent diameter aftermarket pipe isn't worth more hp here.

 

I agree, more of a bottleneck down at the resonators which I will be doing next to get a more free flowing sound etc. Grabbed these pics from another thread, 2.2" at pipe..shrinks down to 2" at the actual resonators. Im hoping all these little mods will add up in helping getting maximum whp when I install the Boss manifold.

 

muffler delete?? i ran some 3" pipe with some 3.5" inch magnaflow tips and the sound was amazing! inside the car it was just enough to not be screaming in your ears but out side it could be heard from quite a ways away...i took it to a shop for the install...used the flanges from the stock mufflers, and with labor and parts it cost me 200 which is waaaaaaaay cheaper than you're going to find an axle-back that produces the same sound...

 

no muffler delete for me... I don't want it obnoxiously loud, but just manly loud Plus, with no mufflers, I bet the drone would be unbearable.

 

I have the tips off of my Roush mufflers and the sound is COMPLETELY different. I didnt think it would change at all. A lot of the popping is gone and it's deeper. Almost sounds like a fox body with dumps on the mufflers.

 

Ordered the BBK after cat x-pipe from AM yesterday, can't wait to hear what they sound like with my Hushpowers!