ive currently got a wrsport (prodrive )backbox on my classic but ive acquired a prodrive backbox but im not sure which one to have on which will i get the most benefit from ie noise bhp gains?

 

Not to sure, but is the pipework the same diameter? Will it fit?

 

straight swap ive been told

 

Ok, confused.
You already have a WRsport backbox and now you have a prodrive backbox, what from a ppp'd car? which is a wrsport backbox made by scorpion....

Tony

 

the prodrive one is part of the ppp pack the wrsport is off a rb5 but is made by prodrive as its stamped on the underside

 

They are both the same backbox the WR sport backbox is part of the PPP thats fitted to about 140 of the RB5's but its still the same b/b thats fitted to any other PPP'd car, just doesnt have the stamp on it.

Tony