Originally Posted by TeeLex

See the first post of this thread for the list. I would recommend paying attention to the two flanges, especially. I had to really look for the flanges because of the bolt hole distance - I would try and get 2.375" diameter openings with a 4.25" bolt hole center ( distance between the bolt hole centers ). This allows the 2.25" tubing to slip in ( maybe with some minor flaring ) and also would allow the catylitic converter 'lip' to slip in the flange for better sealing. If you can duplicate the original flange ( or even use the original flange ) you'll have the best sealed set-up ( the original flange has a groove machined in to allow for the 'crush' seal gasket - as does the cat flange ). I can help direct you to the suppliers I purchased the tubing from.

Originally Posted by alredxiii

Also are you still using the Carson Resenators?

Originally Posted by Deception

Can you add the x pipe on the gs300??