Hemidenny K member club?
Tell her yours needs a new K-member and they don't remake them, so you have to by an aftermarket. Act all pissed off about it and say that you don't want a used one or you will eventually run into the same issues. Boom, wife feels sorry for you and you board the HemiDenny train to performance town.
You never said anything was wrong with yours, so your not lying. Then tell her that once it is together, you have to bring the car to Carlisle in July to get its final inspection because the alteration was to the "frame"..... bring a bottle of rum.