will the blitz nur spec r back box section go with my decat centre section its a 2.5 decat centre section cheers

 

dont think so,the nur spec R is a 2 piece cat back i think.. the nur spec S is just the back box

 

The Nur R is 3" and the Nur S is 2.5" so they are not compatible really, although if the flanges mate up correctly, it shouldn't be a problem if the bore changes at the backbox?

 

thanks for that chaps. is the nur spec s the exact same back box as the nur r system just diff bore on the piping. so it would sound pretty much the same if i was to get a nur s back box and put it with my centre decat i already have

 

i think so mate

 

how much louder is the blits nur spec than after burner vortex or is there not much in it

 

???

 

Hi mate i just fitted the blitz nur spec s backbox to my 2.5" decat centre pipe the bore is 3" but the flange will mate to your standard 2.5" flange.
The spec r is bb and centre pipe together.
Sound is louder than the afterburner and is awesome.