http://www.quickflowmufflers.com/products.htm

http://www.quickflowmufflers.com/pic...r/muffler2.JPG

Unique patented reverse cone design proven to increase
flow and decrease power robbing back pressure.

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Id like to see one cut open.

 

When I redo my exhaust later on, I might consider one. Looks like a pretty good design they have going on there.

I wonder what the craftsmanship is like on them?

 

It does look good and the design points are sound. Why I wonder what it looks like inside. I could weld n powder coat my own up hehhehe

I also wonder what it looks like inside, to see if it would still work well with 2 out lets. Ya know how the stock system on most cars is 1 muffler with 2 out lets.

 

Most anything beats a Cherry Bomb, frontwards or backwards.

Some flow or dyno data would be nice. However, since they offer none, a quick look says abrupt 90 degree turns are rarely beneficial for flow improvement.

"Friction causes heat. The more back pressure in an exhaust system, the more friction is created, causing "power robbing" heat build up to travel through the entire exhaust to the engine. " Now, there's some real science - tuner mentality at work...

That muffler and a Tornado on the air inlet sounds like the hot ticket to performance improvement via a lighter wallet.

 

I don't see any 90* bends on the link provided. I see 2 perforated mandrel bent 30*'s or so, and a straight. The center inlet and outlet one would have practically no restriction that I can see.

 

Here's a cutaway they provide:

 

#1 is 90 degree bends to get to #2.

 

I wonder how it flows backwards???