Topic: SuperTrapp exhaust ???

[76supersport750F]

I see from the web that Supertrapp sells a slip on 2.5 dia with adjustable disc.

Also I think they sell a full exhaust.

Has any one installed this on there F models and what does it sound like Quiet loud.

Any pictures feedback?

Thanks

I had one person respond and I e-mailed him back but  his e-mail return undelivered

Thanks

[cafe2be]

i have a mini supertrapp welded onto my oem headers. I really like the sound of it, kind of grunty and frees up the back to expose the whole back wheel. I run full disks.

[Don R]

Is this the one in the car section or do they have one this size listed for a bike?

[Terry in Australia]

I've got a full "period" Supertrapp system on my 1977 CB750F2, but in fact it's off an earlier "F" or "F1". I'm not particularly impressed with it, and as my F2 is running a tad rich it blows black sh1t all over my rear disc and rim. Also, the headers are a pretty craapy design, they sweep out too far on the right, and stick out further than the points cover so would probably "touch down" in a tight corner, and the headers don't allow for the removal of the oil filter cartridge, and there's no room for an oil cooler adapter, or even the crappy F2 "oil cooler" heatsink plate.

The Supertrapp design is quite simple, it has an end plate which blocks off the exhaust flow, forcing exhaust gases back thru the internal baffles, and "discs" can be inserted between the muffler and the end plate which allow the exhaust gases to vent "sideways". The more discs you use, the louder it is (and supposedly, the more horsepower it makes) and fewer discs make it quieter. (and supposedly, torque-ier)

I recently installed a Supertrapp muffler on my new Triumph Rocket III's OEM headers and it sounded great, but (probably because the engine is so huge at 2300CC's) the problem was that the pressure of the exhaust gases hitting that back plate would try to push the muffler off my header pipes and so I was always tightening it up after a ride, and the stainless steel  muffler body would go "brown" very quickly due to the heat.

I've seen that some people have completely removed the end plate, but that defeats the whole purpose of Supertrapps patented disc system, and makes the internal baffles (perforated tube/fibreglass) useless. Cheers, Terry.