Can someone tell me if a blitz nur spec backbox only will fit a uk99/00 turbo it has came off a 97 sti type r, also is there much difference in noise between the nur spec r system and the nur spec box i know this tapers down to 2.5''.

 

I have just the back box on mine with a magnex centre decat

 

Hi m8 does yours taper down to 2.5'' at the joint to your magnex, is it as loud as spec r system.

 

Not sure m8 think it does - TBH the loudness IMO is the same - but with the spec R system you get the bung which will come in handy