Probably a dumb question but would a Magnaflow Catback system work with a turbo, Greddy S1 perhaps?

 

any exaust 2.5'' will work, you'll need a s-pipe too.

 

The magnaflow exhaust doesnt come with the s-pipe?

 

no, read the install instructions.

"Cut about 3.5 inches behind the catalytic converter"

You would be better off going with a company either offers full exhaust, or atleast an exhaust that bolts up to your s-pipe instead of cutting into stock piping.

 

I like the sound the magnaflow catback system provides and the way it looks. I hate those coffee can looking exhausts. Any suggestions towards something that might look and sound similar to a magnaflow exhaust?