Stage 1 Beehive Springs:
Single Beehive valve spring set uses the factory spring seat and the factory retainer. This is a great option for those wanting to run our S1 or S2 camshafts on a street application, or anyone wanting to run more than 11mm of lift on the intake and 10.6mm on the exhaust. RPM limit 9,000
Stage 2 Beehive Springs:
Single Beehive valve spring set, includes new 4340 Chro-molly spring seats and Titanium Retainer set. This kit is capable of 11000+ RPMS, with as much as 12.5mm of lift. This is a must have for anyone pushing the limits. If you have had problems with valve float or throwing rocker arms this is the spring set that will cure your problems.
FITMENT: Evo 7-9 Stage 1 spring set. Evo 1-9 Stage 2 spring set.