muffler deletes
Thread Starter
2nd Gear Member
Joined: Jan 2010
Posts: 484
From: North Carolina
muffler deletes
hey guys i was wondering if anyone with the 4.0 has custom muffler deletes on their dual exhaust?
I got the NTO true dual exhaust with gt mufflers and i recently saw a great deal from this 2006 GT owner who is selling custom muffler deletes with borla tips.
if anyone has a set up similar to this one please post.
I thought since the price was low enough i might as well try it.
Oh and im not interested in getting SLP loudmouths or anything like that.
I got the NTO true dual exhaust with gt mufflers and i recently saw a great deal from this 2006 GT owner who is selling custom muffler deletes with borla tips.
if anyone has a set up similar to this one please post.
I thought since the price was low enough i might as well try it.
Oh and im not interested in getting SLP loudmouths or anything like that.
5th Gear Member
Joined: May 2007
Posts: 2,388
From: Central Texas
SLP loudmouths are essentially muffler deletes 
I fabbed up a set of muffler deletes and ran them for awhile. It was louder than the gt mufflers of course, which I also used with my v6 dual exhaust setup (when I had it). With your x-pipe, it might not sound very good, though. You can get a rough idea by simply removing the mufflers and see how it sounds (supporting the over-axle pipes of course, and driving with windows rolled down).
Power-wise, it wont make a difference; but it WILL be louder! With stock cats, it'll actually sound pretty good, unless the X smooths it out too much. With headers and high-flow cats and x-pipe, my deletes made the car sound like a bee. Way too ricey!
I fabbed up a set of muffler deletes and ran them for awhile. It was louder than the gt mufflers of course, which I also used with my v6 dual exhaust setup (when I had it). With your x-pipe, it might not sound very good, though. You can get a rough idea by simply removing the mufflers and see how it sounds (supporting the over-axle pipes of course, and driving with windows rolled down).
Power-wise, it wont make a difference; but it WILL be louder! With stock cats, it'll actually sound pretty good, unless the X smooths it out too much. With headers and high-flow cats and x-pipe, my deletes made the car sound like a bee. Way too ricey!
Thread Starter
2nd Gear Member
Joined: Jan 2010
Posts: 484
From: North Carolina
SLP loudmouths are essentially muffler deletes
I fabbed up a set of muffler deletes and ran them for awhile. It was louder than the gt mufflers of course, which I also used with my v6 dual exhaust setup (when I had it). With your x-pipe, it might not sound very good, though. You can get a rough idea by simply removing the mufflers and see how it sounds (supporting the over-axle pipes of course, and driving with windows rolled down).
Power-wise, it wont make a difference; but it WILL be louder! With stock cats, it'll actually sound pretty good, unless the X smooths it out too much. With headers and high-flow cats and x-pipe, my deletes made the car sound like a bee. Way too ricey!
I fabbed up a set of muffler deletes and ran them for awhile. It was louder than the gt mufflers of course, which I also used with my v6 dual exhaust setup (when I had it). With your x-pipe, it might not sound very good, though. You can get a rough idea by simply removing the mufflers and see how it sounds (supporting the over-axle pipes of course, and driving with windows rolled down).
Power-wise, it wont make a difference; but it WILL be louder! With stock cats, it'll actually sound pretty good, unless the X smooths it out too much. With headers and high-flow cats and x-pipe, my deletes made the car sound like a bee. Way too ricey!
6th Gear Member
Joined: Jul 2008
Posts: 12,259
From: Acworth, GA
SLP loudmouths are essentially muffler deletes
I fabbed up a set of muffler deletes and ran them for awhile. It was louder than the gt mufflers of course, which I also used with my v6 dual exhaust setup (when I had it). With your x-pipe, it might not sound very good, though. You can get a rough idea by simply removing the mufflers and see how it sounds (supporting the over-axle pipes of course, and driving with windows rolled down).
Power-wise, it wont make a difference; but it WILL be louder! With stock cats, it'll actually sound pretty good, unless the X smooths it out too much. With headers and high-flow cats and x-pipe, my deletes made the car sound like a bee. Way too ricey!
I fabbed up a set of muffler deletes and ran them for awhile. It was louder than the gt mufflers of course, which I also used with my v6 dual exhaust setup (when I had it). With your x-pipe, it might not sound very good, though. You can get a rough idea by simply removing the mufflers and see how it sounds (supporting the over-axle pipes of course, and driving with windows rolled down).
Power-wise, it wont make a difference; but it WILL be louder! With stock cats, it'll actually sound pretty good, unless the X smooths it out too much. With headers and high-flow cats and x-pipe, my deletes made the car sound like a bee. Way too ricey!
4th Gear Member
Joined: Jan 2010
Posts: 1,305
From: Arlington, Virginia
So if I'm understanding you properly you have dual exhaust with a reverse Y at the axle, feeding 2 mufflers looks like >----< (sorry on the blackberry) limited to what I can draw.
4th Gear Member
Joined: Jan 2010
Posts: 1,305
From: Arlington, Virginia
To be honest I have yet to hear a 4.0 that has your set up all have been true duals (go hard or go home) so can't speak of difference in sound, as far as power neither one is going to add much power (hp or torque)
Joined: Aug 2010
Posts: 21
From: Minnesota
my set up is true duals just without any cross over. so i just have two pipes the full length of the car but there is no sort of crossover between them. It is very obvious that it was hacked together because of the way it was done. I also forgot to mention there are shorty headers on my car too but they flow into stock cats so i'm not sure what that does for performance either.