I have a set of 2006 Coupe sport springs (front) and also a set of fronts from a 2004 non-sport coupe.

Spring rates are the same as far as I know (314)..

I can't see a physical difference with the naked eye.....

does anyone know if there is a difference between them two?

I ask because the 2006 set is in much better shape and that is what I want to install on my 2003 Sedan non-sport.

thanks,
Tom

 

No difference. If you put those sport springs on the back, though, they will soon wear out your non-sport sedan shocks. If you have the coupe shocks, put those on at the same time.

 

thanks for info.

No, I was able to get some non-sport coupe (2004) shocks for the rear. Also putting in new Tokico blues on...

Car is at 175,000 miles now, hopefully the shocks will last me until I buy a new G35..