Sound doesn't know inlet from outlet. Turbo mufflers are basicly a straight thru angled design.

DynoMax's documentation claims it is not a simple turbo muffler. If they claim one end should be the inlet, I figure there must be some reason, even if it is fairly trivial. Otherwise why not allow the greater fitment options that reversing it would allow?

The universal mufflers will fit/flow in either direction.

http://www.dynomax.com/ecat/pdfs/superturbo.pdf

(Top of page 2)

Don't know if this will help but I just put a Dynomax Super Turbo 17733 2 1/2" inlet on my car about a month ago. Purchased at Advance Auto Parts for $47.77.

After searching the Dynomax website and talking with techs at the store felt there was NO issue with mounting "backward"...inlet in center outlet offset as previous post stated.

Car sounds awesome, nice rumble without obnoxious noise. You can definitely here it coming without getting a negative reaction from the neighbors. I would highly recommend and I don't think it is very visible unless you duck under and take photos like I attached. I added a chrome tip to extend beyond bumper. I still get exhaust smell into the car with windows down, but have not done all the tips on new seals, checking for holes, gaps, etc...nice winter project for Wisconsin.

One comment, the first few days of running brought up what smelled like a very hot candle wax odor, probably the fiberglass matting breaking in??? :nervous::smoke:It went away after the first couple of days of running.

I posted a few pictures of the different angles. Hopefully this helps everyone.

Steve

I'm going to try turning the muffler and see if that makes a difference. I may go with the Borla if I'm not happy with the results. Thanks for all your help. Darrell 240Z