I have the F springs. They are ok, they don't kill the ride like some do. but I have bottomed them out a couple of times riding in the mountains. But then again I'm also running the Steeda X2 balljoint without the spacer (another 1/2" drop front) and a Kenny Brown track plus kit in the back (another 3/4" drop rear). Total drop was over 1.5" front and rear, But I'm also running tires that are larger in diameter than stock. I'm thinking of getting the "C" springs for the front though. And yes I have to be very carefull with the front end since I have a Mach 1 chin spoiler.
Red35th - the Mach 1 springs(600lbs front) are stiffer than the B springs(425-530 front) .
Red35th - the Mach 1 springs(600lbs front) are stiffer than the B springs(425-530 front) .