The World’s Finest Digital Damper.

987 TransparentControlled by the DSC Sport controller, the DDA line is unlike any other electronic damper in the world. From its incredibly fast response rate and state-of-the-art electronics and valve design to its superior build quality and design, no compromise on quality. After three years of extensive calculation, simulation, and engineering the DDA valve was put into production. Paired with the DSC Sport controller, the DDA line offers the most sophisticated and highest-performing active suspension solution for all situations.

DDA Valve
The heart of the DDA product line, the DDA valve is the fastest, most stable bi-directional internal damping valve in the world. The DDA valve can respond to commands from the DSC Sport controller in only six milliseconds, or up to 60 times in the blink of an eye! (comparable valve designs respond in 80-100 milliseconds). Unlike other electronic solenoid valves, the DDA valve can also respond to mid-stroke commands, allowing for even more instantaneous damping performance. By utilizing a traditional shim stack arrangement in their electronic solenoid valve design, they are able to repeatedly and consistently produce the “ideal” damping curve for a variety of applications.

Build Quality
The mechanical build also sets the DDA line apart from similar dampers on the market. The proprietary guide seal design features a .01mm guide clearance – the finest in the industry. This incredibly precise guide seal clearance provides DDA products with the lowest stiction in the industry. This precision, combined with the placement and position of the DDA valve, makes the DDA valve impervious to side load even during the most severe mechanical conditions.

All products are subject to scrutinous quality control tests and simulations in accordance with BMW automotive standards before receiving the green light for production. Each DDA valve design is subjected to 17.6 million cycles on a shock dyno and must retain 85% of original damping performance before being approved for production. The DDA valve is tested at temperatures as low as -30°C and as high as 140°C before production. Any technology that survives in these harsh conditions, has a field day in car racing.

All DDA products are fully serviceable and rebuildable by DSC Sport, eliminating the need for costly overseas shipping. DSC Sport recommends product inspection every 30,000 miles.

RT Package

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The Road/Track (RT) package is the introductory level coilover kit for the DDA line. It features the patented DDA damper, swift springs with rates of your choice, and billet aluminum top mounts/camber plates on all four corners (note: some models may not include springs or top plates; please check specifications for your vehicle before purchasing). The RT package is ideal for street driving, DE days, club racing, and professional sprint races (<1 hour) with no sacrifices on performance or compliance.