Supertrapp Mufflers?

[case07]

Has anyone had any experience with the Supertrapp 443-2010 mufflers? We're going to install them on our car (CBR600F4i powered) and I was wondering whether anyone else had used them, and if so whether they passed the noise regs. Summit Racing says they're "perfect for street rods" - does this mean they'll reduce noise to a street-legal level?

[case07]

Has anyone had any experience with the Supertrapp 443-2010 mufflers? We're going to install them on our car (CBR600F4i powered) and I was wondering whether anyone else had used them, and if so whether they passed the noise regs. Summit Racing says they're "perfect for street rods" - does this mean they'll reduce noise to a street-legal level?

[Buckingham]

Typically, places like Summit that sell "street" parts are about as good of an engineering resource as a used car salesman.

[js10coastr]

rumor has it that our school showed up with a supertrap years ago...

...the design judges pointed and laughed.

[Matt Ahl]

We've used Supertrapps for years. You can control the backpressure with the discs and we never had problems passing sound. We also never had a problem putting out 70 Hp w/ a flat torque curve on a full size dynojet either.

Sure there are better mufflers out there, but you'll impress a judge more if you can acutally test and prove what you are using and why you chose it.

[Daves]

2 years ago we used a single Supertrapp car muffler on our F4i engine, but we could not get it quiet enough no matter how many plates we removed. Instead, we bought a Honda muffler while in Michigan, and we installed it to pass the noise test and continue with the other events. Our quietest with the Supertrapp was 117 db I believe, and with the stock Honda muffler, the noise level was 102 db.

[osubeaver]

The real problem with supertrapps is that they sound like absolute ass on just about any kind of motor http://fsae.com/groupee_common/emoticons/icon_smile.gif. They make a 600 cc inline 4 sound like a scrap metal grinding machine.

[drivetrainUW-Platt]

since were on mufflers, we ran the Flowmaster Hushpower II tank of a muffler on our 04 car, it was free, its stainless steel and squeaked by sound testing. Unlike most, our car has a nice deep throaty sound, not that ricy wine...too bad the damn thing weights 11 lbs!!

[osubeaver]

Haha a huge Flowmaster on an FSAE car. That's funny. Now, let me tell you the secret to taking out some of that ricy whine - take out your O2 sensor. It will give your exhaust a nice mean sound. We call it the "power plug" http://fsae.com/groupee_common/emoticons/icon_wink.gif.