Does anybody know where that old post is were that guy from sweeden built his own muffler. He posted a video and it was named tomgang I had it bookmarked a while ago but it is long gone.

 

But why would you? There are so many sizes and configurations available, what is you need that you can't buy?

 

3 inch dual in dual out for a tru dual exhaust system. I don't know of anyone that makes a muffler like this.

 

Magnaflow makes a muffler like this, I believe they even offer it with a built-in X-pipe.

 

Yes, the Magnaflow muffler Birdie mentions is the same one I use in my dual exhaust setup. Over the axle, Magnaflow mounted in the stock location.

I believe there are other companies that make them with the exhaust flow going through parallel. I'll try to find a few links for you.

Not trying to discourage you from building one. Hey sometimes it's just fun to build things.
But you would likely find better performance from a well engineered design.

-Mindgame

 

I hear you I did some searches on google and some of the forums and all i could find were 400 dollar porche mufflers. Mindgame how is the magnaflow? I wish they made the 3 inch dual in/out in stainless. I would appreciate the other links. One more question is there any drawbacks to have the x style muffler? I know the x is to far back to be any benifit over a traditional x-pipe but does it hurt anything? Also how is the sound?

 

I like the Magnaflow.

The one I'm using is stainless but the inlet/outlets are 2.5". Everything from just before the rear axles on my car is 3" where it reduces down (6" long reducer) to 2.5" before going over the axle. All bends are mandrel.

Is it holding me back? Don't know, but the car runs consistent times of ~10 seconds flat in street trim and I can shave a couple of tenths off that with suspension adjustments.

As for the "X core" I don't really see a drawback to running it. The path through the muffler is not torturous and if mounted behind the axles it's a good ways from the high velocity flow.
Of course you could always use a "Bullet" type muffler but they are IMO too loud for a high hp engine. If you're trying to keep everything tight, with the pipes near to each other, you can always use two mufflers that are offset/offset (to the same sides) and go that route.

-Mindgame

 

Mindgame did you find links to those other mufflers that are dual/dual.

Thanks

 

Oh yes.

Check out SpinTech http://www.spintechmufflers.com/spin...ntechindex.asp

Got to "Products", "Street Performance", then "Sportsman Split Case".

Flowmaster also has a muffler. It's a low profile that uses oval inlets and outlets.

I'm not too crazy about either of these choices. I'd much rather go with a muffler that doesn't use baffles and twisted pieces of metal inside to cancel out sound. Dynomax, Magnaflow, Borla, StraightLine, Edelbrock Victor are IMO better choices performance wise.

-Mindgame

 

Well I just called magnaflow I asked if the made the 3 inch dual dual muffler in stainless he said no but withen the next year they would come out with one in stainless. So everybody call and tell them you would like there 3 inch dual dual muffler in stainless so they make it before next april.

 

If you are hanging the muffler transversly behind the axle, how about using two short Ultraflow welded 3 inchers. Perhaps you can twist each slightly to achieve your dual 3 in in-out in the availiable space. Something like a pair of 17221 or 17232s might fit. Either pair will support well over 600 hp with virtually no power loss. Magnaflow 14329 is pretty much the equivalent
in stainless.

http://www.dynomax.com/documents/ultrafloweld_specs.pdf

http://www.magnaflow.com/02product/ss.htm

 

I actually had looked at that with two flowtech afterburners I had laying around. It could fit but it would be very tough to do. If dynomax had there 25 dollar rebate deal come up again I would consider it but I think for ease of installation I will go with the magnaflow muffler unless there is some reason I shouldn't. I talked to the tech rep about it and asked him about the internal x-pipe he said it acheived the same purpose as one closer to the engine but the closer to the engine it is the better it works. I was going to put one in anyways right behind the tranny. Now will two x-pipes (the real one and the faux one in the muffler) be a problem? Or cost any performance? Mingame if you have some pictures of your exhaust on hand that you could email me that would be great.

Thanks

 

I have a set of flowtech afterburners that I had on my 88 chev pickup. I was going to try and put them on my camaro.. but I think they might hang too low.. Guess I will have to wait... I like the idea of Tri Y's with an x pipe... I think the curve would be alitttle broader and flatter...

 

If that particular muffler doesn't flow like the ones mentioned above, you will lose some power.

It's probably axiomatic that "ease of installation" is the opposite of "max power". Think of it as a triangle with "power" at one point, "cost" at another point and "installation" at the third point. If you choose one point to be optimum, the other two will more than likely be at the other extreme. For example: Max power = difficult installation and probably higher cost. Easy installation = less power and maybe less cost. Lowest cost = low power and harder installaltion.

It boils down to how important max power is to you. You pay your money and you take your choice (or your chances).

 

I've never thought about it like that oldstroker. Alot of truth to that. And MG I wouldn't mind seeing pics of your exhaust sys. too. Maybe you can post some.
-b