Looking for an aggressive, bottom end clutch kit!

Hey guys, new to the Rzr Forums ( same screen name on the Polaris ATV Forums) Just traded my Sportsman 1000 in for a 900 trail. I’ve got 28" Mega Mayhems and a QSC clutch kit. I may want to upgrade to a better kit( something more than just weights and springs)

Can you guys advise on a good kit for the 900 trail and where would I get it? Looking for great bottom end torque. We don’t do much high speeds in the woods or on the trails but love to power slide! Thanks