When I bought my 2006 GT convertible, I remember reading that cars equipped with the 18" wheel option had specially calibrated shocks. Now that I have like 53K miles, I am starting to think of replacing the shocks & struts. I was looking at Bilstein, but I see no special parts for cars with 18" wheels. Are they needed?

 

I have Roush springs and Koni adjustable shocks/struts on my 2005 convertible and I'm very happy with the ride.

 

Do you have 18" wheels?

 

My stock were 17" but I've switched to 18x8.5 on front, 18x9.5 on back.