f**king dear though for a ko4 conversion. I might as well sell the car and get an M3 and remap it. Wmi is my next option though!
trade the golf for this then
http://www.autotrader.co.uk/classified/advert/201236484420737/sort/default/usedcars/onesearchad/used/onesearchad/nearlynew/onesearchad/new/page/1/radius/1500/keywords/fq400/postcode/g134rf?logcode=p
your not man enough for an m3 just yet 
Wouldn't mind the FQ, but at nearing 80k miles things are going to start going t its up.
My brother in law is selling his M3 CS 2006 (Comes with 19" standards and uprated brakes all round)
He said I could have it for £15k (Its on at £21K) A tad sluggish considering the 'stigma' attached to M3's, but having said that 'Clubsport' said they could remap it and take it from 340bhp and 270lbft, to 375bhp and 330lbft and take the limiter off, so rather than the mundane

155mph it should be good for 190mph.
I borrowed it to go to Newastle Emlyn in Wales in January this year, when my Jag was in the garage and it was a very nice car. Totally planted and returned nearly 26mpg on the whole journey.
Plus which it would be nice to own a rwd drive car! I couldn't bare to buy an mx5, boxster,, z350, 328 etc just to get into the rwd circle.
If I really wanted something brutally quicker than anything else then I'd buy a custom build quantum/caterham kit car. My friend owns the company linked below and he could build a 450kilo, 350bhp kit car, that would smash anything. His personal Quantum vx (7 replica) has twin turbos, has a dry weight of 530kilos and produces 440bhp. Just under 900bhp per tonne

0-60mph in 2.3 seconds (Quicker than a 1000cc British superbike), 0-100mph in 5.2 seconds (quicker than a Veyron) and 0-150mph (top end) 12.1 seconds (quicker than a Mclaren F1)
http://www.mbmotor-sport.com/4.htmlProblem being is I like a ROOF!