Hi my exhaust on my scooby is starting to go, and i am trying to find out what the best performance exhaust is to put on, that will put my bhp up and about how much they cost, also any onther info on this subject would be very gratefully accepted.

So if anyone can help please reply?

 

GSM21,
Loads of threads on performance exhausts, particularly regarding Scoobysport and quite a few concerning Mongoose,Janspeed and Magnex.
Others to consider (all stainless-steel);
GGR,Scorpion,Blitz,HKS,Regal,Devil, Supersprint, most having the option of cat. bypass pipes and/or high-flow downpipes (loads of power to be gained via these but cat. necessary for MOT)
Prices range from £169+vat(Magnex basic system), right through to £675+vat(HKS system+downpipe).
It's possible to gain in excess of 20BHP with cat-less systems and downpipes but as you can see there are quite a number of options to choose from.