McLaren 650S XperTune Performance Software Style:Default Watch our video about HJS

Watch our video about HJS German  catalytic converters

Helical Valves are the standard for high performance OEM applications raging from Ferrari and Porsche to Lamborghini

3 Turbo & TS (88-91)

Exact valves as used by Porsche on the GT3 cars

We use our FLOW Waterjet to cut a CAD designed

McLaren 650S XperTune Performance Software Style:Default Watch our video about HJSXperTune Performance software upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air fuel ratios, and boost pressure. Achieve maximum power from the McLaren 3. 8L Twin Turbo V8 without sacrificing drivability or reliability by optimizing the engine's performance. Greatly enhances the power and dynamic performance and drivability of this wonderful vehicle. Maps are available for completely stock