So I have a 5th gen 2019. 5.7L, 4x4, 3.92 axles, 4 door, 6.5 bed. I'm wanting to do upgrades to help it tow better. I tow between 7-8k lbs. Stock I think it does the job fine and am very please. But I would like a little more "get off the line" and "cruising" power so to speak. I know there are...