Not to be trying to start nothing here. I have become good friends with a exhaust shop owner, and i dont mean one who sets behind the desk and does nothing. I have been friends with him for over 6 years. I have learned a thing or two form him. Number one thing I learned was you cant make a v6 sound like a v8 i was young and stupid. Has nothing to do with this but just thout i would throw that in. The other thing is, the x-pipe is bad. Yes it balances you exhaust out. I dont care what dyno to dyno says Im talking about facts.

If you run true duals 2.5" pipe and si/so mufflers, and you go and put an x-pipe in, now you have took your once true 5" (adding both sides together) down into a 2.5" x-pipe forcing them to mix then back to true's. So my question is what did you gain buy putting true duals on? You now have a true dual 2.5" system instead of 5".

The h-pipe balances when it needs to be, it doesnt force it. idling it wouldnt matter either way. When you get up in the higher rpm or bigger hp, that h-pipe isnt working much cause it doesnt need to be, your already at your max hp, so it wouldnt help much.

Now let me clear something before everyone starts jumping on me. Read the above I said taking true 2.5 into a 2.5 x-pipe Im talking the center of the x-pipe. Now say if you did this same setup and the center of the x-pipe was 5" then this will not apply.

All in all i would pick h-pipe. it makes a lower growl, and throws the low end/take off up a bit.

x-pipes in my option lowes max flow and takes alot of noise out. Theres proof right there x-pipes are quieter then h-pipes wonder why?

Just dont do what this guy done the other day. Im still laughing. 4.7 dodge, got all 3" pipe(said the motor needed it, yeah right stock 4.7) anyway form 2.5" collectors, to 3" pipe, to a factory looking x-pipe, 3" pipe out, and into a 50 series flowmaster DI/DO, and out the side in front of the rear tire with 4" tip's. Now will someone please tell me where the x-pipe is doing any good with a di/do muffler? and way 3" was used?

I'll tell you way someone told him on a forum that 3" and x-pipe is the only way to go. That was the quietest dodge i ever heard. Best yet he was back in to ask what happened to all his power.

 

You cant never get a truck to sound exactly like a mustang, it cant be done i tired it and about 8 other people did with every kind of setup you could think of money wasnt a option for some of us. At times you can get it to sound like one but not 100% of the time to sound exactly like a mustang. Number one mustangs are shorter, the have the room to run true duals(one pipe down each side) not two pipes side-by-side. again my two cents dont mean no harm and not calling no one out.

my setup cost about $400 in the long run was much more then that since i was always changing stuff around adding removing putting back and so on. i finally ended up with the following. stock headers, no cats, 2.25 pipe, 31" thrush glasspacks, take some of the loud snappish out, then into a 40 series di/do muffler. sounds very big blockish at idle. love it. anybody wants a sound ask and i will do my best to get one.

 

H pipe = choppier tone
X pipe = smoother, more refined tone

By X pipe, I mean a chambered X, or true X design.