Stix66

I am looking to purchase an exhaust system to make my 99 GT sound mean.

I was looking to buy this, http://www.mustangtuning.com/slpexhaust.html

Now is this all I need to have that great sound and be emissions legal, or do I have to buy more?

Also I dont think my other thread is working cuz i can't get into it

Stix66

I was also looking to get this instead, as I hear that Borla is good and has life-time warranty.

Borla Exhaust

Again same question as above.

NO2MORO

I would either use the Magnaflow, Borla or Bassani. All these will give you a different sound. The Borla is the loudest out of the three. Next would be the Bassani then Magnaflow. The Bassani has a removable pack out of the tail pipe if you want it louder. Price wise The Bassani is the most expensive then Borla and next would be Magnaflow. After installing one of these cat-backs and you would still like it louder you can install an X pipe with cats. This will keep you legal also.


What ever you do, do not use the Mac Pro chamber. It will shake the fillings out of your teeth.

Scothew

A Catback is defintely going to wake the sound of your car up, but what really makes it loud is replacing the mid-pipe (i.e. getting rid of the 4 catalytic convertors.) going with an o/r pipe is by far the loudest.

Catbacks do give hte car an increase and sound and much more aggressive tone. I prefer magnaflows. Quiet when driving, but really wake up when you get on teh gas. Borla is awesome stuff as well but $$$. if you want that classic mustang sound, you cant beat flowmasters.

Scothew

sorry.. if you keep your stock mid-pipe, you will be emissions legal, but cops may harass you about sound. Sounds like jsut a cat-back is your best bet at this point. The SLP is nice, but I still like magnaflow and borla

charles

i love borlas and i think was thinking of a custom exaust with mufflers from a 2001 cobra on a stock exaust would sound good

by the way the slp is very very very loud and i wouldnt get it if the cars your daily driver and your neighbors will hate you for it

Andy Haynes

I know some of you will think I was an idot but it sounded good with the stock hpipe on my 00gt and that was I had 1chamber flowmasters welded in. I wouldnt do them with tailpipes without the cats it would sound horrible but with the 4 cats it actually sounded pretty good.

Scothew

Its not crazy.. I honestly prefer the sound of a car with cat's, but the stock mid-pipe is defintely a performance hinder.

conv_stang

is that why i need dental work??? LOL, it is true i would definitely go with bassani or borla. if you go bassani and dont mind extra cost. go with their midlength headers, cat x pipe and catback. gonna be pricy. but will sound great, but thats just my penny and a half

Stix66

Wow thanks guys for the opinions and help... im still deciding on either Borla or Magnaflows but yea I might keep my stock mid pipe for a while until I can afford a new one... I will just put the stock one on I guess for when I have to go for an emissions test, am I right that we all do this?

Dan

You're not the only one. I like it with the stock H as well.


BTW, Borla (ie. Stingers) are LOUDER than Magnaflow and Bassani?

cheech6g

Im getting new catbacks within the next couple of months, either steeda or borla. I've heard a lot of good things about borla but does anyone here have steeda? I just need some opinions.

Scothew

borla stinger is defintely louder than magnaflow.

check this for example... doesnt have stinger listed, but will give you a decent comparison.

This test was performed by 5.0 Mustang & Super Fords Magazine, December 2002 issue (page 55) on a '90 Mustang LX coupe with 370hp and 11 second potential. 66 pulls were made for this comparison:

The results in HP order:
1.Flowtech Warlock (open) 374.2 hp/ 333.1 tq
2.Bassani Real Street 373.7 hp/ 333.8 tq
3.Hooker Maxflow 373.5 hp/ 333 tq
4.Borla XS 373.3 hp/ 332.6 tq
5.Magnaflow 372.8 / 332.5 tq
6.MAC 372.3 hp / 331.5 tq
7.Flowtech Afterburner 372.3 hp/ 330.1 tq
8.Hooker Aerochamber 372.1 hp/ 330.4 tq
9.Bassani 372 hp/ 333.5 tq
10.Spintech 371.6 hp/ 332.2 tq
11.Edelbrock Performer RPM 370.9 hp / 331.3 tq
12.Borla XR1 370 hp/ 334 tq
13.Flowtech Terminator 369.5 hp / 331.3 tq
14.Dynomax Ultra Flo 369.4 / 333.2 tq
15.Flowmaster 369.4 hp / 331.8 tq
16.Flowtech Warlock 366.3 hp / 325.3 tq
17.No muffs 365.2 hp / 330.1 tq

Sound Off in Quietest to Loudest (Decibels):
1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.
16.No Muffler, 91db at idle, 103db at 2,000 rpm, MAX. (120+db).

Stix66

^^^^^^^ NICE INFO!

Dan

Thanks for the info scott! So the stinger is the Borla XR1. What's the difference between XR1 and XS?

Also, by your info, the stinger is pretty loud. Humm.....

If I go aftermarket for the 05, I definately want to hear it, but I will kill myself if it ends up driving me crazy in the car.

Most who have driven the new car say it sounds like it has "American Thunders" on in from the inside already.

Gotta wait and see I guess.

conv_stang

gee how about that. MAC is almost as loud as no mufflers. let us know how things go. try and get some before and after sound clips. still trying to convince the wife i need 1600 bucks worth of exhaust for the bassani complete kit. but she hasnt bit yet. still working though

motorCITY

Stix66

Of course I'm a lil'bias, but I think you'd love the Borla Stingers.

Good Luck w/your decision.

Andy Haynes

If I am not mistaken Bassani was making steedas exhaust kits. That was back in 01 I dont know about know but I am pretty sure thats who still makes it.

Andy Haynes

Btw guys on my 00gt I went from 1chambers and factory hpipe to offroad hpipe and mac mufflers to flowmaster mufflers. The macs just sounded like an old truck going down the road but at wot those were some nasty sounding mufflers. If I had to do it again. I would go with Bassani xpipe and magnaflow mufflers. Then you dont have the tooth chipping interior sound.

mustangfun101

So I don't start another thread........I have stock headers and a Flowmaster Force II Catback system. What kind of x-pipe should I get and it needs to have cats because I'm gonna stay legal. Thanks.