An exclusive suspension system for exclusive cars: Porsche and Nissan GT-R owners, who have already made the choice to experience the performance benefits of a groundbreaking active suspension system, now have the option of an aftermarket alternative. *The product benefits at a glance:* * Electronic adjustment system developed specifically for each application * Adjustable setting levels for the most dynamic driving experience * Ability to switch instantly between settings to suit driving conditions * Threaded body adjustable range of 20 mm at both axels, while installed * Lowering of approx. 30-50 mm at front and rear * Road-tested and fine-tuned by BILSTEIN ride engineers, under extreme motorsports conditions * Spring plates and lock nuts made from a special aluminium alloy * Surface coating using Triple-C-Technology®for long-lasting corrosion resistance * Round threads for easy adjustment * Quality sport springs made from highly durable material * Gas pressure technology * BILSTEIN monotube technology, made in Germany PartNumber : bil49-145489 Description : B16 (DampTronic) - Suspension Kit Series : B16 (DampTronic) Internal Design : Monotube Finish : Dampers: Zinc Plated Front Clear Anodized Rear/Springs: Blue Title : Bilstein Shock Absorbers California Proposition 65 : WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov Position : Front and Rear 2008-2009 Porsche 911 GT2 H6.3596cc Suspension::Coilovers 2011 Porsche 911 GT2 RS H6.3600cc Suspension::Coilovers 2007-2008 Porsche 911 GT3 H6.3598cc Suspension::Coilovers 2010-2011 Porsche 911 GT3 H6.3800cc Suspension::Coilovers 2007-2008 Porsche 911 GT3 RS H6.3598cc Suspension::Coilovers 2011 Porsche 911 GT3 RS H6.3800cc Suspension::Coilovers 2011 Porsche 911 GT3 RS 4.0 H6.3996cc Suspension::Coilovers