[er455]

Originally Posted by Boostedbird

Tom's right, that merge piece is absolutely killing any flow that you had. You need a larger downpipe, a merge something like the one in the picture or a custom one, and probably an electric cut out or a Loud Valve on the downpipe.
You asked about my exhaust. I have a 5" downpipe that runs from the turbo down to about the rear of the transmission where I smoothly transitioned down to 4". It stays 4" back to the bumper where my 4" muffler is. The muffler is a Dynamax Ultra Flow. It's straight through and pretty much just changes the sound a little. I'm either gonna put a 4" Loud Valve dump on the downpipe up front or run a second 4" pipe from the 5" to 4" transition.

Ok maybe my pics are not showing what I have the merge pipe looks like the one you posted here is a pic of what’s on my car ...