BigBeez03 said:Do they make a noticeable improvement on a Coupe?
Which ones? MM full lengths-absolutely. Adding the in-floors to a coupe that already has MM full lenghts-I really don't know.
This is my experience- I had a 2000 GT Coupe and had MM full length SFC's installed. The car felt completely solid. I don't know that adding in-floors to that setup would be noticeable.
Now I have the '04 'vert Snake and had the MM full length SFC's installed and the car still has plenty of torsional flex, particularly when jacking it up on the SFC right behind the front tires. It cut down on the cowl shake by about 60% I would estimate, but has not been enough for me. I have been told that the in-floors will make me happy, and if they don't I'll be on many message boards telling people it's a waste of money. hahaha