[Drift&Drag]

Originally Posted by King Tut

Most insurance companies operate this way. Some already have a set dollar amount built into the normal collision/comprehensive coverage for aftermarket additions. I would not expect that to be any more than $5000. If you wish to have more coverage added on, then contact your company and tell them you wish to have x amount of money for aftermarket additions added on to your policy. They will happily take your additional premium each week. For guys with really expensive builds you could switch to a non standard collector car type insurance company where they charge based purely on your perceived value of the car.

Well said!