Is it possible to fit the STi prodrive sport cat down pipe to a classic MY00 with TD04? My Turbo 2000 with PPP requires a new front cat as the original is rotten. I've noticed a lot of prodrive cats up for sale, Is there a simple method of using one and connecting it to the standard classic center pipe? I've not heard of it being done so I assume its a lot of work.

Thanks

P.S

Failing that, does anyone have a mint standard down pipe for sale?