Will suspension change affect vehicle?
 

I can’t seem to get a straight answer from any Acura dealership whether or not changing suspension on my 18 tlx apec would affect my vehicle dynamic drive modes or anything in general besides ride quality.

Drive modes don't change any suspension stiffness or function. It only changes throttle sensitivity, steering wheel effort and how the transmissions shifts. Ride quality would be affected mainly. One thing i'm still not sure of is if the '18+ Aspecs need a camber kit when lowering them. Some have installed them and some have not. Time will tell. . .

Considering your car doesn't have dynamic suspension, I can't see why the driving dynamics would be affected directly.