Does anyone know in percentage terms how much extra power a pro-drive back box would give on a standard UK Turbo2000??? Picky insurance company wants to know

Cheers

Ab

 

The pro-drive back box is quite restrictive so i wouldnt think it was alot if anything at all.
Ive got PPP turbo and noticed a difference when i put a Scooby sport back box on instead of the prodrive one so i realy dont think the prodrive one will give much increase in BHP on a standard set up.

Andy

 

The standard back box is very restrictive with a long set of baffles and tubes. Have you seen what a standard back box cut open looks like?
The Prodrive box is a straight through design so it seems less restrictive. Comparing seperate standard and Prodrive backbox cars on the dyno I would guess its good for 3/4BHP on the wheels.

 

About 5-8bhp which on a standard UK car would be about 2.3%

 

I am wondering about swapping back to a PPP BB as the Magnex is a bit noisy for my tastes. Maybe I'll lose 2 BHP?

 

Cheers lads, maybe that`ll stop the miserable tw@ts whining at me. well, that and the letter i`ve asked my dealer to send them