The fact that you have a manual trans makes things much easier. I didn't like the behavior of the auto and the lift to shift issues. I think you'll have good luck with any of them. However, the Sprintex made great power and ran smoothly. If you are interested in sprintex, let me know. I'm going to sell of the one I pulled from my '14 when I went with the MoTech LS3. Good luck whichever you choose.