£375 fully comp - adrian flux - thats with 6 years no claims.
Previous poster is correct - its the increase in power that puts it up - (i'll have to let them no if i upgrade to a k03s

)
With AF though they said now I can do anything else I want to the car - wheels, suspension, brakes etc and it won't cost a penny more - good for the long term.
You'll struggle with main stream insurers though as they just look at the increase percentage - !50 bh to 200 = 33% - scares them all off. Pissed me off a bit 'cus if I had a TT they'd welcome me with open arms.