At Wicked Metalworks, we build engines to perform—more horsepower, faster response, and power you can actually feel. Our engine performance upgrades in Appleton, WI are designed to push your setup further without sacrificing reliability. We start with airflow, adding cold air intakes, high-flow intake systems, and throttle body upgrades to wake your engine up and sharpen throttle response. From there, we back it with fuel system upgrades like high-performance injectors, fuel pumps, and regulators so your engine gets the fuel it needs when it needs it.

Power means nothing if it can’t move, which is why we open things up with performance exhaust systems, long tube and shorty headers, and high-flow catalytic converters to let your engine breathe and make real gains. For builds that need more than bolt-ons, we go deeper with camshaft installs, cylinder head upgrades, and valvetrain work—building power from the inside out.

When you’re ready for serious gains, we install turbochargers, superchargers, and complete boost systems that deliver hard, consistent power. And to keep everything running strong, we upgrade cooling with performance radiators, oil coolers, and intercoolers so your engine stays reliable under pressure.

No shortcuts. No mismatched parts. Just clean, dialed-in builds that hit harder every time you step on it.