what to expect

[jamesy]

i have a standard valver in good nick well looked after with full service history as im putting a fair amount of sounds in it i dont see the need to go silly with performance mods therefore im keeping it low key with a de-cat, backbox, induction kit what king of bhp can i expect as my mate just put a hillpower induction kit and full zorst with de-cat on his williams and it made a huge difference?

 

[edde]

Decats seem to make a big difference on Williams I think there usually very restrictive.
Gains depends on so much you should expect a bit more power and free reving though.

 

[jamesy]

cool im happy with it as it is so any extra ponies gained are a bonus