Introducing Ibexx’s new stage 2 clutch kit, this is the second level to upgrade your clutching. This kit has the addition of an upgrade on your secondary with a new helix and secondary spring. EBS or Non-EBS(This is the engine braking system. Stock comes with EBS on most vehicles. if you are not sure then select EBS)The kit contains: Specially designed green profile weights, Primary Spring, Secondary Spring, and a uniquely designed custom angled helix.