Hi I've just join the crew and recently spent hours trawling through the net for insurance for a 182 chipped, viper etc best quote was through believe it or not Swinton Specialist, beat all the modified car insurance companies with silly excesses of 850 (performance direct) and becareful of the moneysupamarket sites, got a fantasic quote went through to pay, read the small terms and conditions and it stipulated no modifications despite putting all these into the search details.
Swinton specialist is 08451684422 policy is underwritten by AXA with a £250 excess cant be bad.
Good luck and give that car a blast
Steve