Let’s be honest: when you’re looking to open up your truck’s responsiveness, the last place you’re likely to look is directly under your feet. That’s precisely where you can look for it on a D-Max, though. If it’s a more responsive throttle that you’re after, installing an Ultimate-9 Isuzu DMax throttle controller is the mod that’ll instantly let you tap into your engine’s natural power curve and put more of the D-Max’s power on the ground where it’s needed.