I have a cat secondary with the er 911 roller kit. It has adjustable spring tension. It has a Titanium red spring from Tison and a 49' helix with O.D cut into it. I also have a 54 48 billet helix and a 54' helix alon with some other springs. Very nice clutch. Parting out sled so I dont have a need for it anymore. $275 plus shipping.
