Just wondering b/c when I get mine I'll be wanting some dual exhaust. I know it adds alittle weight, but I'd like to get the 2 GT muffs and split the pipes right before the cats. IMO dual cats and muffs adds alittle to perf and sound. Gives just alittle more 'KICK' when flooring to get away from those pesky sunday morning drivers.

 

I am thinking about it, I have already installed the GT takeoff muffler.
I called a local custom exhaust shop and he didn't seem interested in doing it. He gave me a quote of over 300 dollars, and was very negative about trying to do it, I think he just wanted to sell me a flowmaster muffler though.

 

Flowmaster kind of stinks. And it's very bad business to discourage any customer b/c they don't want when you sell. Flows have the worst sound at high RPMs and once they get old, it'll sound like you have a Honda...

 

Hey Kevin;
Your right in that he did not want to do it!! I have almost the same quote but mine is in Canadian dollars. Plus that was after I ordered the driver's side exhaust pipe from a GT from the dealer and cut my own drivers side notch for the tip out back. Then for them to add a reverse Y after the first Y to hook up the pipe and hangers for the muffler I'm quoted $240.00 out the door.

 

I want to do it as well. I have the JBA headers in place, and I'm waiting around for someone to put together a kit that fits first and formost, but most importantly doesn't make the car sound like S***. The headers were an overall improvement and I want to keep going in that direction. The guy I had put the headers on said to be patient as he is going to make sure that when I DO get the duals put in, they will sound and perform the way they should. I trust him, so I sit here and wait for the word.

 

I was also thinkin bout puttin dual gt mufflers (with the jba headers and most likely an xpipe).

By the way your car already has 2 cats. There is no "splitting" the exhaust before the two cats. After the exhaust manifolds is where the cats bolt up, and then the piping goes down and Y's to a single exhaust to the back.

I was also hoping jba would come out with a dual kit because i love the way their single kit sounds. They claim 20+hp with just their headers (rear wheel) and if they got an additional 9 like most of the other companies are with their cat backs, thats about 30hp just in the exhaust, that puts these things up near last years gt's in power. (add a tune and CAI and im sure it will surpass)

 

I plan to add my left GT muffler at some point.

 

I like that idea wonder what the money figures would be, for headers and x pipe.

 

I also am running the right side GT muffler and will be doing the left side as soon as I can get the hangars (backordered). I have read that it is BAD to go true duals on a stock or lightly modified V6, the reduction in backpressure will actually make the engine lose power and may even cause it to throw trouble codes. It's best to leave the Y intact just past the cats and install another Y to branch to the duals.

Dual exhaust on the six will not gain any HP over a free flowing single exhaust, there's no point unless you are going for the look of duals (which I am).

 

Im also thinking of doing duals. Im in the process of trying to get 2 GT mufflers off a member here. Hopefully it works out. How does the single GT muffler sound compared to the stock muffler??

 

On the v6 S197's, I noticed a kind of "indention" under the bumper for the one exhaust pipe; I believe there are dual "indentions" for the Gt S197's under their bumpers too. So do you S197 V6 owners need a GT bumper for dual exhaust? You probably rig it up where you don't have to buy the bumper, but wouldn't it look kind of funny?

Just curious...

 

==How does the single GT muffler sound compared to the stock muffler?? ==

It sounds fantastic! It's louder than the stock muffler, but not annoyingly loud. I'm amazed at how much it sounds like a V8. It has a nice throaty sound to it.

==On the v6 S197's, I noticed a kind of "indention" under the bumper for the one exhaust pipe; I believe there are dual "indentions" for the Gt S197's under their bumpers too.==

Quite right, in order to install the GT left side muffler the valance has to be slightly modified. Basically you create a template from the right side (use tracing paper to make an outline of the opening), then mirror it to the left side and draw the cutout. Then use a dremel to cut the opening. At least one guy reported using a box knife, he said the material was easy to cut. A couple of people just bought a GT valance and put it on there, apparently there's a guy that sells takeoffs from GTs converted to Saleens.

 

That was me and the box knife! Its very easy to cut. I think a dremel might even be overkill really, though I did use one to clean up the cut a little bit aftewards.

I have flowmasters on my car and love them. Everyone's right though, it has a really great deep sound up until about 3200 with a slight drone around 2700 but nothing too bad. Even up through the RPMs I think it sounds great under hard accel. I turn heads everywhere I go in town, and on the interstate the sound is hardly noticable at all. It doenst sound like a big block chevy, but a very healthy v6. At idle its louder and sounds better than my friends 2000 Harley F150 (5.4L Triton.)

I have almost 6K miles on my car now, and I believe a little over half of that was with these mufflers. I dont know how they're going to sound down the line, but I doubt "riced out honda" will ever come to mind.

Before this I had a 2004 Honda Civic SI. Thats a rice rocket. These two cars sounded NOTHING alike. I use to have ricers play with me all the time on the streets.. the few that rev their engines at me back off pretty quickly now. Its kinda disappointing really =(

 

I just got my V6 yesterday, I really never listened to it until I got it. Bone stock, it IS a really good sounding engine/exhaust. NO, it does not sound like a V8, not a mustang V8. It does sound better than ANY foreign V6 IN MY OPINION. It does sound better than a stock V8 or even V10 Super Duty Pickup.

I am still exploring my options, but i REALLY like the stock V6 sound...i do not want it to sound too loud or rice-like in any way. That sound does not go with this car, it only fits with a ricer...IMO, not a slam, just does not fit.

 

What sound are you talking about exactly? You're a little vague as to which you're talking about. Let me clear, my flows in no way sound ricey. If you like the stock v6 sound you should check out the take-off GT mufflers. They are basically the stock v6, a little less restrictive, and have a much deeper, throatier sound, without ever getting too high. I think they might be perfect for you! They really give the car that extra little kick, and alot more of the "muscle car" sound.

And I agree with you 100%, the stock sounds AWESOME for stock, and much better than any other v6 Ive heard on the market.

 

I've got the right GT muffler on right now, definetly a sweet sound but going to duels next and since its that easy to cut out the other side I guess I won't get the bumper, but what all do I need to convert to duels, x-pipe and hangers any thing else, just learning this stuff so please pardon my ignorance

 

==That was me and the box knife!==

Hey, it's box-knife dude! You're probably right about the Dremel, but I have one and I'm quite comfortable using it, so what the heck

==but what all do I need to convert to duels, x-pipe and hangers any thing else==

If you're wanting to do GT muffler duals, you'll need two hangars for the left side muffler. The bolt points are already on the frame, so if you get the factory GT hangars you are assured of having the muffler hang exactly right. You can risk having a muffler shop hang it, but chances are it will hang lower or higher or closer or farther than the right side muffler. I am going to hang the muffler myself and trim the valance myself, then take it in to a muffler shop and have them fab a 2-1/2" pipe from the left muffler and Y it directly behind the stock Y coming off the cats. One of the guys here did this already and it ran him 150 bucks at the muffler shop. The brackets run about 70 bucks for two.

 

I've been looking into mags for my 6 soon. Has anyone gotten them yet?

 

Mags = Magnaflows? There are quite a few people here with them. Run a search.

 

A member on another forum installed a "true dual" exhaust setup on his V6 and noticed a significant loss of low end power along with a crappy sound from the system. By true dual I mean: left side header to CAT to 2.5" pipe to muffler to tailpipe. Same setup with the right side. Left and Right sides never intersect anywhere. (no X-pipe, H-pipe, double Y-pipe).

BTW, no 4-stroke requires *any* backpressure, but it does require the proper exhaust velocity to generate a vacuum in the other manifold primaries to assist in exhaust scavenging. Too large an overall (system) diameter (cross section) and the velocity slows to detrimental levels.

Also, more "open" exhaust setups typically lose low end torque for an increase in top end torque. Since HP = Torque x rpm, the overall effect will be more peak power (not necessarily more useable power, however).