[stephen low]

Then we will see you there and can have a chat.

Al's right on the money with testing, as the idea is to use a previously complied engine option.

Bobby's right now that I think about it. The wiring is to sensors not the cats, and I don't know if there is any interplay between these, though I suspect not. But on GM systems haven't they gone to four sensors? Anyway the exhaust system would have to have these sensors in place, but welding screw in points would be cheaper than getting a whole new system.

Again that's what I had done to my non-standard system.

Cheers

Steve