Hello

I've currently got an MY00 Turbo. I've had a full Decat (downpipe and centre section) but I'm still running on the STi backbox the car came with. Is it worth me changing to a different one? I've got the Group N TSL one in mind.

Cheers
Karl

 

I've got the TSL gp N on a newage STi PPP and its great. Still have the PPP main cat. Great burble idling and real rasp when you push. Very sporty over-run purr as well with the odd pop and bang. A mate has this but de-cat also and it sounds like a jet fighter. I guess this is a recommendation!