http://www.hksusa.com/products/?id=829

what makes it different from a regular cat back

 

i don't get your question. u can run a cat-back system on a turbo car. what is your definition of a "turbo exhaust"? the best exhaust is no exhaust!

 

o i mean on the hks catalogue they have a "drager" exhaust a "hi power" a "ti" and there theres this one "Turbo Exhaust"

is the "turbo" exhaust supposed to be different than normal cat backs in any way?

 

Off the top of my head only thing that would be different would be piping size. Most turbo cars run a 3" exhaust system and non-turboed/non-SCed cars run a 2.25" to 2.5"

 

that one from the link is a 60 mm pipe = less than 2.5 and its supposed to be a "turbo" exhaust?

 

is there anything else to it so that it might not be just the piping diameter?