R+P woods in Newcastle
DBM in Gateshead
Dont use Turbo pacs i hear they are well sh*te and fook up me mates saffy a few yrs ago
Or there is a little garage in ferryhill where stu the owner is a former cossie owner aswell as evo's, skylines and TVR cerbra and knows his way around his performance cars and he used to rally a bit too

Hope this helps ya mate