Here is a link for them.

http://www.spintechmufflers.com/

If by spinning the air it makes it a Turbo muffler, then yes. It does a lot more though. Check them out. I've been really happy with them. More than the Magnaflow or Flow Master stuff I've used in the past.

Logansportage <img src="/forums/images/graemlins/patriot.gif" alt="" />

White 1998 4 door KIA Sportage 4x4 w/Eibach 2.5 spring lift and TJ rear coils, 4crawler 1.5 body lift, Monroe Sensa.trac shocks, Bosch 4+ plugs, Eaton LSD, 31x10.5x15 BFG KM tires, 2.5 cat back exhaust w/SpinTech muffler