Max Effort HP90 (Hellcat & Redeye) By Sipple

Strap in and hold on tight because the Sipple Speed and Performance Max Effort HP90 Transmission is here to turn your Hellcat or Redeye into a ferocious track beast! We don’t mess around with our transmissions—we’re all about full-throttle, race-proven performance that’ll make your competitors think you’ve unleashed a rocket engine under the hood.

Here at Sipple Speed, we don’t believe in “just good enough.” Our Max Effort HP90 Transmission is a top-tier upgrade, designed to handle everything from street shenanigans to full-blown track domination. How do we make it so awesome? By starting with billet E drums, high-performance steels, and frictions—assembled to SSP’s exacting standards. It’s not just a transmission; it’s a turbocharged powerhouse that’s ready to unleash hell.

Forget the old-school method of tossing a bunch of clutches together and hoping for the best. Our transmission leads the online leaderboards and clinches victories in the winner’s circle because we sweat the details. We meticulously set every clutch and hard part clearance to Max Effort specs and recalibrate the valve body to ensure your ride performs like a dream.

Your HP90 Transmission arrives fully assembled and filled with fluid, saving you over $300 in extra expenses and eliminating the messy work. Just plug it in, and you’re ready to make some noise. We also bench-test each unit to ensure it meets our exacting standards before it even thinks about hitting your vehicle.

Ready to take your Hellcat or Redeye to the next level? The Max Effort HP90 is your ticket to unleashing serious power and domination on and off the track. Get ready to leave everyone else in the dust!