We machine down all pistons in the transmission to accept more clutches. We use only the best Alto Red Clutches and Kolene steels. We use a larger K3 drum from a Mercedes V12 vehicle that we also machine down to fit more frictions and steels. In most instances, I’m able to fit 2-3 extra clutches in each clutch pack drum. Allowing more surface area and longer life. We also use a 300M billet input shaft. We not only modify our valve bodies but, we completely rebuild them and vacuum test them to ensure all the valves are not leaking. If they are we hone them out with a reamer and install oversized valves. Making them like new. The modifications we make as far as performance helps with line pressures, shift pressures, TCC engagement, 2-3 shift overlap.