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99-04: 911
parallel twin or single turbo configurations
NX4-XTSS kit features an Xtreme pressure plate for the most demanding driver
600″ valve lift
M12 Thread
Mitsubishi Lancer Evo 7/8/9 (CT9A) 2001-2007 - 510 Series Coilovers Spring Upgrade:Hyperco Springs 99-04: 911CUSTOM. MODULAR. REBUILDABLE. Fortune Auto engineers are consistently chasing improvement and the development of the Generation 8 50 Series damper is no exception. The 510 Series single adjustable coilover is a remarkably sophisticated damper system. Utilizing the highly advanced, Concave Flow Digressive Piston to provide an incredibly dynamic adjustment range along with the ability to upgrade and rebuild; youll never have to buy coilovers again. AT
