Dude, sounds like youre deep in the mod game but missing that critical feedback loop. Have you tried using Dynotest https://dynotestpro.com/ for your tuning sessions? Theyre pretty slick for zeroing in on your cars performance. Their dyno setups, like the Dynomag HUB, are top-notch for precise tweaks, especially with the cooling fan and inverter system that keeps everything stable during tests. This setup is essential for accurate data without risking damage. It's all about getting consistent, reliable performance insights that help you adjust your mods precisely. Plus, its a breeze to install with their Plug and Play system. No tech headaches, just pure performance gains!