If there is even such a thing? Having some custom exhaust snags and need to put a Cat back on to get my exhaust shop to do more work.

that whole system to larger piping

So I'm looking for high performance upgrade that will last, but not have to take loan out for. Uh heeeem... OEM ;)

random technology makes nice high performance cats. used one before and noticed a difference right away on an older car of mine.

The open chamber allows the exhaust flow to expand and swirl before exiting the other side...which creates backpressure. The large surface area also allows for a cooling effect that contributes to loss of exhaust velocity. BTTT

If you really dont want a cat but have to at least have the appearance of having one for visual inspections you can gut one and run a straight pipe though the center....it looks like a cat, operates as a testpipe. BTDT

I figured you took one look at my car and hung yourself from the lift!

:D

Chris

Hopefully it will be what I drive to Waterfest.

...but it does make a different noise now. When I accelerate, the pipes makes a "flapping" sound. Not sure how else to describe it. The cats were gutted before I replaced them, so obviously I didn't notice any performance difference.

That should sound Nasty!

Chris