So I’ve been tinkering with my project car a 240SX and I’m always looking for budget-friendly ways to squeeze out a little more performance without breaking the bank. I know there are tons of mods out there, but which ones actually deliver a real difference for the money? I’m curious what has worked for you all. For example, I’ve heard a good set of performance tires or a proper tune-up can make a surprising impact, but I’d love to hear from others who’ve tried simple, cost-effective upgrades. What’s that one mod you did that really made you feel a difference on the road or track?