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x-pipe, h-pipe, shorty headers... whats it all mean?

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  #1  
Old 04-29-2006, 07:22 AM
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Default x-pipe, h-pipe, shorty headers... whats it all mean?

Ok so I have a bunch of questions, and no one seems to know a straight answer so i figure this would be a good place to come...

ok so i want to put a new exhause on my 1989 GT but don't know which way to go. in essence i want it loud as (insert f word) and have that low rumble at an idle, and i'm not worried about horse power at all (mustangs are fast enough already and you all know that). so my question is, do i go with shorty headers, long tube, equal length headers (i dont know what the difference is between all three of those anyway).

next would be X-pipe or H-Pipe. i have no idea what the difference is between either of those so i get even more confused with that. i live in new york so i need cats on my exhaust as well. i already have 2.5" flowmaster mufflers so i would like to keep those if i can, but what make is good to go with for headers and pipes etc. bbk, mac, SB, JBA, hooker, etc.

also what is the difference in size? 1 5/8", or 2" or 3" or what?? i'm soo lost anything from anyone will help.. ya know, except maybe for an f-off, that wont help much. i know there is a lot in here but any help will be appreciated
 
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Old 04-29-2006, 07:27 AM
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Originally Posted by 89stang
Ok so I have a bunch of questions, and no one seems to know a straight answer so i figure this would be a good place to come...

ok so i want to put a new exhause on my 1989 GT but don't know which way to go. in essence i want it loud as (insert f word) and have that low rumble at an idle, and i'm not worried about horse power at all (mustangs are fast enough already and you all know that). so my question is, do i go with shorty headers, long tube, equal length headers (i dont know what the difference is between all three of those anyway).

Long tube's for sound and performance!!

next would be X-pipe or H-Pipe. i have no idea what the difference is between either of those so i get even more confused with that. i live in new york so i need cats on my exhaust as well. i already have 2.5" flowmaster mufflers so i would like to keep those if i can, but what make is good to go with for headers and pipes etc. bbk, mac, SB, JBA, hooker, etc.

Slp Lt's with the SLP catted X.

also what is the difference in size? 1 5/8", or 2" or 3" or what?? i'm soo lost anything from anyone will help.. ya know, except maybe for an f-off, that wont help much. i know there is a lot in here but any help will be appreciated
You wan't 2.5 all through.No need for 3 inch you will lose power and anything smaller is a waste of time.If you really want it loud as f*** change the CB to SLP loudmouth's.
 
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Old 04-29-2006, 07:28 AM
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long tube?? i was told from everyone shorty headers give you a meaner sound. what is the difference between them all?
 
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Old 04-29-2006, 07:30 AM
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For the price of the install and performance wise the LT's are the only way to go.With the LT's you are bolting on around 30 hp.
 
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Old 04-29-2006, 07:33 AM
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well like i said i am not worried about hp at all just sound.
 
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Old 04-29-2006, 07:34 AM
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Believe me if you do a full SLP setup it will wake the dead!!!
 
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Old 04-29-2006, 07:37 AM
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any idea where i could find this setup? and can i keep my flowmasters or what? thanks a lot
 
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Old 04-29-2006, 08:18 AM
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Old 04-29-2006, 08:19 AM
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And yes you can keep your Flowmasters but for crazy loud the SLP Loudmouth CB would be alot louder.
 
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Old 04-29-2006, 10:17 AM
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the only problem is that i have an 89 GT not an LX and the only exhaust there was for an LX
 
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Old 04-29-2006, 11:25 AM
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i vote bbk LT headers, Dr. gas or vrs x pipe, and if you want the flowmaster sound, but loud as heck, weld in some 1 chambers.
 
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Old 04-29-2006, 12:13 PM
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Originally Posted by matrixpuba
i vote bbk LT headers, Dr. gas or vrs x pipe, and if you want the flowmaster sound, but loud as heck, weld in some 1 chambers.
Now that's some good advise too. :stupid:
 
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Old 04-30-2006, 04:55 PM
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not to be dumb what is a 1 chamber?
 
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Old 04-30-2006, 05:15 PM
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Originally Posted by 89stang
not to be dumb what is a 1 chamber?
They are the 10 series Flowmasters.They only have one chamber in them.I used to have them and they are loud as hell
 
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Old 04-30-2006, 05:16 PM
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essentially it boils down to less chambers = loud.

I hate flowmasters. No stereo on the planet can save you from the nut-shaking drone.

If you want a loud exhaust get the SLP kit and get the longtubes and a catted midpipe. I'd probably opt for the H pipe for ease of adjustment in fitting. Have your exhaust shop of choice make sufficient mods to make it work for you. It's just pipes and welding... it's not rocket science. The kit displayed in the link above shows a pretty normal dual pipe setup so if that's representative of the actual product, it can't possibly be that different from GT to LX. They're just trim levels of the same car.
 
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Old 04-30-2006, 06:07 PM
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You can get a very loud exhaust while keeping your headers stock.
 
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Old 04-30-2006, 06:35 PM
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so what about these glass pack mufflers i'm hearing about. i know i'll lose power but in case no one pays attention.. I DON'T CARE!!! this isn't my fast car.. this is my loud one... my 71 fastback is the fast one so i'm ok with losing power. i've heard the glass pack 2.5" are loud as hell
 
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Old 05-01-2006, 05:34 AM
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do you have to pass emissions?

like Lance said.. 2.5" is plenty.. you still need some backpressure or you'll lose tons of lowend power.
 
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Old 05-01-2006, 06:07 AM
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yes it definitely needs to pass emissions so i need cats and all that good stuff
 
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Old 05-01-2006, 08:34 AM
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i have a video link at home that i'll put up for you later...its a 99-04 gt with all SLP stuff and it sounds amazing. i know its a totally different year range, but it might give you an idea.
 
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Old 05-01-2006, 08:51 AM
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1 chamber > slp loudmouth
 
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Old 05-01-2006, 02:48 PM
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  #24  
Old 05-02-2006, 04:08 AM
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sounds pretty damn good when you get on it!! how much of a difference would shortys make on that sound. i'm not looking to have my exhaust go all the way out the back of the car. i would really like it to end before the rear wheels and have it come out the side like it does now and i'm thinking with long tubes its going to be a lot more difficult to pull off
 
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Old 05-02-2006, 08:10 AM
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All the long tubes I've ever seen on modulars affect where your mid-pipe connects to the headers, not where the mid-pipe connects to the cat back. It will be very difficult to get anything but a purpose built side exit muffler to exit at the side and sound good.

You can do like I once did... use a plasma cutter to cut the top off a flowmaster, modifiy it so the exit is where you want, weld it back together and hope for the best. I got great sound from it but the thing was so loud and resonant inside the car that I ditched them and just went with dumps.
 
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Old 05-02-2006, 08:33 AM
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I don't think you understood what I wrote.... lemme clarify.

If you modify a resonator like a flowmaster to exit out the side, it'll sound like crap inside the car. I've done it, trust me on that. You end up making basically a big U in the flow pattern and each exhaust pulse will bang against the rear of the muffler, beating you to auditory death after a while.

The mid-pipe in the case of a mustang is the X or H pipe... if you don't see a need for one, let me know how you'd get around the need for one. I'm very interested in how we teleport exhaust gas from the headers to the cat-back.

To get a muffler to exit the side, you either have to bring the exit through the same side the inlet came in or make a wild U bend to get the tail pipe in front of the tires. It's a beyotch. If you want really loud and side exit, then a roush side exit muffler set, an off road Pro-chamber and the SLP longtubes and H or X pipe for longtubes will get you there.

For my side, I'm running a Bassani catted X and a set of borla's with dumps. I'm about to add a set of Magnaflow Thrush glasspacks in place of my flow-tubes (the pipes from the X pipe to the mufflers) to see what that does to the sound. I'm fixin'a slap the 5.4 in so I have to try and get the sound toned down a bit or I'll end up stopped in front of red and blue lights all the time for being too loud.
 
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Old 05-02-2006, 08:59 AM
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That's cool... just confused by what you'd wrote the first time.

FYI, if you make a true dual without a crossover (the H or X ) you'll have a blatty sounding motor. Seriously.. it'll sound like a redneck homebuilt pop-ty-blatty-blat-pop peace o' crud (like those ol' rusted out pickups you see pulling into Cabela's stores piloted by the fattest inbreed they could drag out of a swamp.

Other than that looks like we're actually in agreement.. haha
 


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