Exhaust Cross over (H-Pipe)

SRT10#86

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Hello everyone!!
This is my first post (I don't get on the computer much these days). I plan on running 2 mufflers and I would like to know where I would put the cross over pipe for the exhaust. The mufflers will be the Flowmaster Super 40 Series.

Since I will be instaling 2 seperate mufflers, will I need to do this?

Thanks
 
I have one Flowmaster with both pipes running through it, no crossover at all. It's an '05, what year is yours? I left the rear resonator, just replaced the muffler. Sounds great, good chioce IMHO.
 
"Very nice truck especially the color. Welcome to the New RBC"

Thanks!!!! I'm trying to get more involved. I will be in Houston for the meet. Do you know if there is going to be any more Commemorative Editions there? Will you be attending?
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"I have one Flowmaster with both pipes running through it, no crossover at all. It's an '05, what year is yours? I left the rear resonator, just replaced the muffler. Sounds great, good chioce IMHO."

Mine is an 05. I was told that there is more performance gain if you run 2 seperate mufflers. Is this false?
 
SRT10#86 said:
Mine is an 05. I was told that there is more performance gain if you run 2 seperate mufflers. Is this false?

Not sure about any performance gains. I will dyno my truck today *crosses fingers*, so you can get an idea of what kind of increase for a one-muffler setup.
 
SRT10#86 said:
Hello everyone!!
This is my first post (I don't get on the computer much these days). I plan on running 2 mufflers and I would like to know where I would put the cross over pipe for the exhaust. The mufflers will be the Flowmaster Super 40 Series.

Since I will be instaling 2 seperate mufflers, will I need to do this?

Thanks

Welcome

I use to have 2 Super 40 series on my truck and did not have a cross-over...the mufflers give a nice raw sound....very 60's hot rod.......:D ...and I mean that in a good way
 
Nowwhat said:
Welcome

I use to have 2 Super 40 series on my truck and did not have a cross-over...the mufflers give a nice raw sound....very 60's hot rod.......:D ...and I mean that in a good way


Cool!!!!!! Thats what I'm looking for! You wouldn't happen to have those mufflers for sale, would you? I notice you said "used to". I hate to wait for them to "break in"!
 
RedRamRules said:
Not sure about any performance gains. I will dyno my truck today *crosses fingers*, so you can get an idea of what kind of increase for a one-muffler setup.

Cool, please let me know, Thanks!
 
Use an X-pipe, the Magnaflow has one built inside of it.

Bill.
 
Begood said:
Use an X-pipe, the Magnaflow has one built inside of it.

Bill.
I'd like to do something similar - just change the muffler (not the whole cat back) - probably Magnaflow for a deep but mellow sound. Can anyone tell me a part number for a Magnaflow for an '05 QC? Many thanks!
 
An H pipe to be effective needs to go in before the mufflers, or be built into the muffler.
A "X" pipe is better for flow and improves performance more than an H pipe. The H or X pipe should go in right behind the cats.

In boosted aplications the least restrictive the exhaust is the better it works.

In all boosted applications a straight through muffler design is prefered over a baffled design. A Flowmaster will work OK in a boosted application if sized properly (bigger is better).
 
FSTJACK said:
An H pipe to be effective needs to go in before the mufflers, or be built into the muffler.
A "X" pipe is better for flow and improves performance more than an H pipe. The H or X pipe should go in right behind the cats.

In boosted aplications the least restrictive the exhaust is the better it works.

In all boosted applications a straight through muffler design is prefered over a baffled design. A Flowmaster will work OK in a boosted application if sized properly (bigger is better).

I do not plan running any boost, so I guess my decision to go with Flowmasters was OK :rock:
 
SRT10#86 said:
Cool!!!!!! Thats what I'm looking for! You wouldn't happen to have those mufflers for sale, would you? I notice you said "used to". I hate to wait for them to "break in"!


Sorry...don't have them any longer....not much need for the break in...the second you push the red button you will get perma-grin...
 
Nowwhat said:
Sorry...don't have them any longer....not much need for the break in...the second you push the red button you will get perma-grin...

Perfect!!!!
Thanks for the info!
And thanks to everyone that replied!!!!!!
 
you don't need a crossover pipe on a viper motor. each bank of cylinders is an independent 5 cylinder engine. so a crossover is actually going to cause exhaust puffs to collide with each other.

a v8 needs it since they a cylinder from each bank one at a time. the viper engine fires 2 cylinders at the same time.
 
AWDisuzu said:
you don't need a crossover pipe on a viper motor. each bank of cylinders is an independent 5 cylinder engine. so a crossover is actually going to cause exhaust puffs to collide with each other.

a v8 needs it since they a cylinder from each bank one at a time. the viper engine fires 2 cylinders at the same time.


This is why Mike has only 1 header on and gets away with it....
 
H pipe

Last night I went ahead and installed the h-pipe where they come together the closest.

I took off the muffler 2 months ago and it sounded as if it was back fireing when i let off the gas. Now that I put the h-pipe on, that back fireing sound is gone!

I didn't f@#$ anything up, did I?

Thanks.....
 

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