whast the difference between the 2? is one better then the other?

   

Absolutley no need for cat back. Axle backs are all thats needed since it only results in an improvement in sound and, depending on brand picked, some much needed weight loss.

_________________
GT parts wanted

My StreetFire site

   

axle back is ok in california?

   

As long as the brand you pick is "sound legal". Dave (PEELTHS) has some insight on this.

_________________
GT parts wanted

My StreetFire site

   

Yes sir. Know matter what you get just make sure they have 4 inch chrome tips. Joe do your reseach around your town for the BEST muffler install shop. You want those tips even coming out the back of your GO. Your GOing to spent some bucks on the exhaust, don't get cheap on the installer.

   

quote:

---

Originally posted by FalconGTHO
Absolutley no need for cat back. Axle backs are all thats needed since it only results in an improvement in sound and, depending on brand picked, some much needed weight loss.

---

_________________
veilside.mustang
'08 Mustang GT
Polished Roush blower, Roush one piece drive shaft and safety ring, Roush short-throw shifter and knob, Roush Trak Pak carbon fiber wing, ultra-rare Veilside body kit (love it or hate it), etc.
http://s412.photobucket.com/albums/pp201/veilside_mustang/

   

Joe,
there's no need to replace the mid-pipes on your GO. They are 2 1/2" mandrel-bent SS tubes and they flow plenty well. Just replace the actual mufflers. You have many options when it comes to these. I have Flowmasters on mine, and it is a little louder at idle, and sounds real good from about 2500rpm and up. It does have a little drone at 1500rpm, but it's not objectionable.They have 3 1/2 polished SS tips that look good sticking out of the bumper.
These are easy to install yourself. Took me about 45 min. If you crawl under the car, you'll see what I mean.

_________________
'07 GT Premium
Mods:"Shelby" stripes(black), Flowmaster axlebacks, JLT CAI, SCT programmer w/ custom tune by CJPP, engine dressup items, 1/4 window louvers, side scoops, GT350 rocker stripe, shorty antenna, painted calipers, interior dressup items

   

so i learned a litle bit by reading this , the picture Helped alot to0..

http://www.americanmuscle.com/mustang-exhaust-buyers-guide.html

so i understand that the cat back systems replace everythign after the catalytic converters but what do the axle back systems replace?


and how come Headers are illegal in california if the exhaust is still going through the catalytic converters?

   

quote:

---

Originally posted by joevfx
so i learned a litle bit by reading this , the picture Helped alot to0..

http://www.americanmuscle.com/mustang-exhaust-buyers-guide.html

so i understand that the cat back systems replace everythign after the catalytic converters but what do the axle back systems replace?


and how come Headers are illegal in california if the exhaust is still going through the catalytic converters?

---

_________________
2007 Mustang GT

MODS:

l MGW Short Throw Shifter l Eibach ProKit Lowering Springs l Pypes O/R X-Pipe l Borla Stingers l Visus Rear Window Louvers l CDC Shaker System l Shelby Hood Pins l CDC Chin Spoiler l Custom BOSS Stripes l Pioneer AVIC D-3 l Saleen Parnelli Jones Shift Knob l

   

thats annoying, i mean if it passes the emmisions test why do they care if its the factory cats or after market cats. booo to california

quote:

---

Originally posted by steve91386

quote:

---

Originally posted by joevfx
so i learned a litle bit by reading this , the picture Helped alot to0..

http://www.americanmuscle.com/mustang-exhaust-buyers-guide.html

so i understand that the cat back systems replace everythign after the catalytic converters but what do the axle back systems replace?


and how come Headers are illegal in california if the exhaust is still going through the catalytic converters?

---

California law maintains that a factory catalytic converter can only be replaced under failure or defect. (this part may be inccorect >) but I also believe that California requires an OEM or OEM equivilant cat be installed when replacing a dead factory cat.

I found this all out when I was inquiring about registering my GO (currently registered in RI and with NO cats) in California. I was told that even if I purchased a set of long tubes and high flow cats, it would not pass the visual portion of the emissions testing.

---

   

Determine what your goal is first, is it to make it louder? Then you'll most likely be fine with axlebacks, and you can install those easily on your own with simple hand tools. Even if you have to loosen up the forward clamps for tip alignment issues you can do so with the help of a floor jack and jack stands. I went with the Ford Racing (Borla) stingers. They are NOT Cali legal. Other than annoying my neighbors in the early am , I just keep my foot out of it in the presence of authorities...

   

do you have any audio of the ford racing exhaust?

quote:

---

Originally posted by PEELTHS
Determine what your goal is first, is it to make it louder? Then you'll most likely be fine with axlebacks, and you can install those easily on your own with simple hand tools. Even if you have to loosen up the forward clamps for tip alignment issues you can do so with the help of a floor jack and jack stands. I went with the Ford Racing (Borla) stingers. They are NOT Cali legal. Other than annoying my neighbors in the early am , I just keep my foot out of it in the presence of authorities...

---

   

quote:

---

Originally posted by Tazman
Joe,
there's no need to replace the mid-pipes on your GO. They are 2 1/2" mandrel-bent SS tubes and they flow plenty well. Just replace the actual mufflers. You have many options when it comes to these. I have Flowmasters on mine, and it is a little louder at idle, and sounds real good from about 2500rpm and up. It does have a little drone at 1500rpm, but it's not objectionable.They have 3 1/2 polished SS tips that look good sticking out of the bumper.
These are easy to install yourself. Took me about 45 min. If you crawl under the car, you'll see what I mean.

---

_________________
GT parts wanted

My StreetFire site

   

quote:

---

Originally posted by veilside.mustang



So in answering Joe's question, I feel there is a difference in what is being described between "axle back" and "cat-back", plus, there will be an impact on sound. What do you think, Alan?

One word of caution if you are a "noobie"... Be aware of the drone around 1900 to 2000 rpms. Research thoroughly. Also, camcorder sound clips don't do the actual sound any justice...

---

_________________
GT parts wanted

My StreetFire site

   

quote:

---

Originally posted by joevfx
do you have any audio of the ford racing exhaust?

---

_________________
GT parts wanted

My StreetFire site

Last edited by FalconGTHO on Thu May 14, 2009 11:25 pm