It's advertised here, has anyone used it? Know if it does increase gas mileage or horsepower? I've heard that the TL already has a pretty good airbox.

 

You can't lose. You get a free decal when you buy Spiralmax .

I never heard of it but I thought I would add the link.

 

So what exactly is it?

 

The one advertised on this page is the http://www.turbonator.com/WhatIsIt.html That pretty much explains what it is, the spiralmax is more or less the same thing.

 

Is it Dyno proven by anyone here?

 

Yes, and up to 35 additional horsepower for the spiralmax, probably an additional 12 horsepower for the turbo exhaust tailpipe, and a whopping 13 more for the decal. That's 60 more HP than the 270 we have now. I bet I could cut my 0-60 times to under 10 seconds with that setup.