Upgrading to Brabus

[cjfc]

I have a 230K Sports Coupe and was thinking of upgrading the engine with the Brabus 2.6 S Kompressor kit. Obviously this is going to increase my insurance but I was wondering if any of you knew what would happen to the resale value of the car? Furthermore, is it easy to sell a Brabus modified car?

Thanks in advance for all your help