Allstar Performance Spring Pre-Loader Wrench - Fits Body H77703FS Simpson's DNA products are designed

Simpson's DNA products are designed with athletic performance-enhancing features engineered to reduce weight and young driver restrictions

and amber for nighttime racing

Drilling is required to Stack Stands for installation

yet they are still able to easily flow numbers that are in raised runner head territory

the KC7 CMR Carbon is a winning choice for the next generation of champion drivers

Allstar Performance Spring Pre-Loader Wrench - Fits Body H77703FS Simpson's DNA products are designedPre loader allows use of a softer spring rate that is pre loaded at ride height. The pre loaded spring will have less rate increase as the suspension travels. For example, a 150 lb. in. spring can be preloaded to 400 lbs. at ride height, but still only increases at a rate of 150 lb. in. as suspension travels. The entire unit may also be exchanged with another unit with a different rate spring pre installed to allow spring rate changes without