i bought my my99 ppp back in march this year i recently have changed the exhaust system and found the old centre section to be normal steel with the heatsheids still on
should this be stainless steel like the back box?

 

no ppp is backbox only.

*not so sure now*

when i looked inder my rb5 wr it was a mild steel centre section with heatshields. i didn't notice a cat tho - but i was not looking.

 

Yea same here my WRSport ppp MY00 had the SS back box and a mild steel Dectted centre section. The odd thing is the pipe looked as though it still had the cat in place but it wasn't. HTH

 

can anybody else help

 

PPP has an STi centre section,mild steel with heat shields, but a small straight thro' resonator box replaces the cat.