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

long tube?? i was told from everyone shorty headers give you a meaner sound. what is the difference between them all?

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.

well like i said i am not worried about hp at all just sound.

Believe me if you do a full SLP setup it will wake the dead!!!

any idea where i could find this setup? and can i keep my flowmasters or what? thanks a lot

Yep!! Right here at MT!!
http://www.mustangtuning.com/slpexhaust2.html

And yes you can keep your Flowmasters but for crazy loud the SLP Loudmouth CB would be alot louder.

the only problem is that i have an 89 GT not an LX and the only exhaust there was for an LX

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:

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 :punk:

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.

You can get a very loud exhaust while keeping your headers stock.

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

dont bother w/ glasspack bull****...

if ya wanna mean exhaust...

Headers - longtube or shorty (whatever you can a afford {LT>Shorty})
off road mid pipe - h-pipes are better on 302s... **** cats... ya got an old car ya'll be ok
cat back - flowmasters sound great @ a budget... (neighbor has a '69 roadrunner with a 440, the thing has shorty headers, and straight pipe going to flowmasters, loudest car around...)

I have MAC shorty equal length headers
mac off road h
and a borla cat back (best catback PERIOD)
on my 5 liter and it sounds great...


Also, MT doesnt have crap for SN95s and has less for foxbodies... ya may wanna check out this site... some parts are a bit over priced but ya'll see about how much stuff for your car is going for and ya'll have more of a selection
http://www.mustangsunlimited.com/74-...SRCCODE=MULWEB

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.

yes it definitely needs to pass emissions so i need cats and all that good stuff

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.

1 chamber > slp loudmouth

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

not at all...

yer either gonna have to have if made custom...(not as expensive as it sounds)

or find a kit

or do it yer self

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.

well if ya do it right it'll sound good...

I really dont see the point in having a mid pipe on a side ezhaust car... send em straight out...

I can see havin a mid pipe i bit harder but still most certainly do able WITH the right skills tools and materials

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.

well... what i was tryin to say was...

Dont go to yaddayaddaexhaust.co and buy this special fit item...

If he wants to go out the side theres a few ways to do it...

1. easiest, buy a kit (if they make one for his circumstances)
2. somewhat easy... have one custom made (could cost a bit, again depends on circumstances)
3. not easy (for most) make one yourself... but you need the tools (welder etc) material (tons of pipe) and most important the skill and know how whatever...

what i meant by the "no mid pipe" was... instead of having an h-pipe or x-pipe... make it a straight pipe and go out to the side (this would be what i would do IF i made it at home myself)

I wasnt argueing what you said... just tryin to give few options...

also... a custom made exhaust will cost just about the same as a good exhaust... my friends custome (full) exhaust on his lincoln cost right about the same as mine (mac shorty equal headers, mac off road H, borla catback)

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