[RMARIANI]

Have any of you used or know the differences between FRPP's regular spring kit (M5300B) & their "Super Sports" spring kit (M5300C). Both kits are around the same price. I was also wondering why aftermarket springs (Eibach, BBK) are so much more expensive?? Are they that much better?? I always assumed that original Ford parts were superior to the aftermarket copies. Am I wrong??