$1,099.00 Porsche 955 Cayenne S 4.8L V8 (2007-2010) Stage 1 Performance ECU Tune Want to add even more Horsepower? Upgrade to Stage 2 ECU Tune. (Catless Application) Adds an approx. 30-40 additional Horsepower! Check the box below: Upgrade to Stage 2 + $399.00 Product price Additional options total: Order total: Porsche 955 Cayenne S 4.8L V8 (2007-2010) Stage 1 Performance ECU Tune quantity — OR — Add to cart Category: Porsche Cayenne Description Description +30 Horsepower +35 Torque Performance ECU Tune Features Eliminate Top Speed Limiter Increased Throttle Response Optimized Fuel and Spark Optimized for 93 Octane Related products Porsche 955 Cayenne 4.5L V8 (2002-2007) Stage 1 Performance ECU Tune $899.00 Select Options Porsche 958 Cayenne 4.8L Twin Turbo V8 (2011-2017) Stage 1 Performance ECU Tune $2,199.00 Select Options Porsche 955 Cayenne 3.6L V6 (2008+) Stage 1 Performance ECU Tune $899.00 Select Options Porsche 958 Cayenne S 4.8L V8 (2011-2017) Stage 1 Performance ECU Tune $1,099.00 Select Options