Most Golf R owners guess at intercooler ROI without checking their actual intake temps. We analyzed 50+ dyno sessions to show you the real cost per horsepower math.
Your intercooler hit 380hp on the first dyno pull, but dropped to 340hp by the third. Heat soak isn't just losing power, it's killing consistency when you actually need it.
Temperature swings of just 20°C can shift your STI's knock threshold by 2-3 timing degrees, turning a safe winter tune into engine damage. Here's what your datalogs are actually telling you about seasonal temperature changes.