For the JK application, the factory shift points at wide-open-throttle effectively use the engine power band, so these were left stock. The firmness was increased, however. The Max Energy works well ...
Anyone who has driven a stock Wrangler JK knows that the 3.8L V-6 leaves you wanting more, much more. But what happens when you add suspension, wheels, tires, axles, body armor, bumper, winches, etc.?