Does fitting a throttle body kit offer a big jump in BHP, does it work better with other engine mods. I own a GTE 16v, which as far as I am aware is standard, apart from an induction kit. I've been told that just fitting a Superchip will give about 10% increase of power, but that 10% will cost £265.
I am prepared to spend more as long as there are good results!
How much power will a standard engine take before it dies. Any thoughts welcome.
P.S I've heard that throttle kits are loads of ££££££££££££