Its voodoo.. Heard the same claims about supertrapp mufflers years ago.noxben said:
swirling in a vortex? hmmm.... isn't that what happens when air goes thru the turbo?mike saunders said:There's a more detailed explanation of the muffler action elsewhere on the site. Those guys definitely don't get A's for clarity of site design....
The principle behind it is pretty sound: exhaust gases swirled into a vortex have more velocity (than non-swirling air), and can help reduce backpressure by exiting the exhaust system faster. It's basicially the same reason that Honda and other manufacturers are beginning to cast swirl-inducing fins into intake manifolds.
I'm curious to see if there's actually a difference, above and beyond what the manufacturer claims. The prices for the Aero-Turbine seem pretty reasonable compared to Saab Sport stuff.
I'll give you a free pass on that comment because I KNOW you understand that all the benefical action of the turbocharger happens before combustion and that all the backpressure in the system happens after combustion. We're talking about the after-effects of combustion....swirling in a vortex? hmmm.... isn't that what happens when air goes thru the turbo?