Hi Mark!
I was under the impression that de cat means removal of both cats? From what you are saying its just the main cat which is called a midpipe. Well I did remove my main cat at first but was not too happy with the performance gain. Mark removing the pre-cat will make a really big difference as I found with my car. The boost builds so quickly, troque comes on strong as low as 2500/3000RPM it will blow your socks off!! Waiting to boost 19psi~I cant wait to fit my Greddy Profec B, BCC, and 60mm boost gauge/peak hold,warning.
Anyway's mate~I live in Bangalore/ India so making a frontpipe which was polished to elimenate the precat cost me 60 pounds including fixing.
http://www.geocities.com/randymurthy2002/supra6.jpg
(Edited by randy at 10:12 am on Mar. 7, 2002)
(Edited by randy at 10:25 am on Mar. 7, 2002)