I was going to post this. Back when I had my 911, I fitted the lowered official suspension and upgraded the engine mounts. Nobody is going to know that as a new driver, remaps must be even worse as the average motorist wouldn't be looking for those things.
I did think they could void insurance for undeclared stuff, or at least if it affects the claim but not sure. Would love to see an insurance company trying to renege on a claim due to after aftermarket wingmirrors on. Surely if it's different from factor you'd have to keep the same brand of tyres, wipers, oil (I know that's being extra pedantic).