The Porsche Cayman S from 2005-2008 features a 3.4L engine that produces 291 horsepower to the crank. With its rigid body and mid-engine design, the Cayman S is a perfect street or track vehicle. With the desire to improve throttle response and driveability, the Cayman S can definitely benefit from a ECU flash. The VR Tuned ECU Flash is all done via the OBDII port for the 05-10 models. Following our simple instructions here, we provide you with a tuned file and your original file to be used at anytime. When tuning the Porsche 987 Cayman S, parameters are adjusted including the torque limiter, O2 sensor limits for secondary cat removal, changing the rev limiter on 6speed cars, and of course, improving upon horsepower and torque. Power increases go up from stock of 291HP to 315hp with a torque gain of 251ft/lbs to 268ft/lbs. If you are looking for a great upgrade to your Porsche Cayman that is effective, safe, and reliable, the VR Tuned ECU Flash is it!