Hi,
I got tired of my Vortex muffler being too loud, so I bought a Supertrapp muffler ($40 on CL) to replace the exhaust tip. I couldn't be happier!!!
Basically what it did was made the exhaust tone and low end torque tunable by adding or subtracting discs.
The Vortex's loudness was a 7 out of 10. By adding the Supertrapp with 12 discs, it dropped it to a 3. It's a tad too quiet, but a nice change (I think I'm getting old...).
It also raised the low end torque (butt-dyno). The thing drives like it's new again! And... so far the gas mileage is up too. I'll know later...
It looks very unique too... adds to the stealth/armored look
---JIM---