These are the 4" diameter 17.5" stainless automotive mufflers. Supertrapp claims they can handle up to 250 hp. per muffler before they lose efficiency.

I just cut off the stock mufflers and bolted these on. I was a little worried about too much noise with such a small muffler, but they are very reasonable. even with all 12 disks installed it was not too bad. I have eight on right now and it is 'just right' for the street. I can even get some of the open end caps for trck or auto-x.

 

Many racers (other cars, not S2000's) do just this trick with supertrapps, usually coupled with removing the cat's.

I'd love to see a before/after dyno plot and to see if increasing the number of disks creates power...

Also curious if you will have any heat/melting problems.

 

that looks like it would loose power

 

I guess you're not familiar with SuperTrapps then.

They look odd to the uninitiated, but they have a long history in racing circles. Of course I don't know about this specific application not having seen any dyno sheets, but as a rule they make a good system.

 

Why would they lose power?

 

By the way, i like the way it looks

 

What are the benefits of those?

 

Supertrapps are a high-flow, tunable exhaust system.

They have a set of removable disks. Run it with maximum number of spacer disks, and there is minimum back pressure and maximum noise. Run it with fewer disks and you increase the back pressure and also quiet it down.

Theoretically, you could put the car on a dyno, and tune the exhaust for the HP and Torque curve that suits your needs.

Even with miminum disks, however, they are typically quite LOUD!



http://www.racerpartswholesale.com/supert5.htm

 

How much weight did you save?

 

Dyno please.