Effective May 12th, 2026
SPRINGS: All cars must use 10” or 8” springs. Any spring weight combination and Aftermarket spring brand of Stock design / configuration are permitted.
Definition of a stock design / configuration spring:
Stock spring design / configuration includes “square” springs (same width from top to bottom) and “linear” springs (with the body of the spring being “square” and the top & bottom coils a bit smaller to accommodate the shock kit).
True Barrel springs (springs with progressively larger coils to the middle of the spring), Progressive springs or any springs that are not stock design / configuration are not permitted. Only one spring is permitted per shock. Spring rubbers are not permitted.