I've got a standard UK MY99 if I were to replace the back box /backbox and centre section what sort of incerase in Bhp will I get , bear in mind I don't want anything too noisy . I've done a search on Scoobynet and everybody seems to have their favorite exhaust (so plenty of options) but apart from a better noise what power increase will I get ?

Thank's in advance for your help

Dave

 

The back box and centre will give you approx 18BHP and with the orginal Scoobysport back box (made by Hayward and Scott )will give a nice deep flat 4 sound without being to intrusive.

Ian

 

Thanks Ian