The 350Z/370Z/G35/G37 is the next generation of the Fairlady Z, the Z33/Z34, and is Nissan's current dominating force in motorsports. With its Naturally Aspirated 3.5L Quad-Cam V6 that boasts torque from Low-Mid Range to Red-line the Z is an extremely well-adapted force in competition. In its stock configuration, it is capable of so much but is still watered-down from it s full potential due to the conservative restraints of Consumer marketing and comfort. The Z and G is a heavy-machine weighing over 3,200lbs and is plagued by body roll and a soft spring-rate for the comfort of the masses. For this reason Megan Racing has decided to develop numerous products to enhance the performance and bring out the full potential of the Z and G on both the street and track. Alignment is crucial to the handling of your vehicle. Remembering that the only thing that touches the ground is the "Contact Patch" of your tires, you have to make sure that your tires and wheels are doing exactly what you want. With this you must make sure you have the proper camber, caster and toe as well as make sure they are all working together and not against each other. The Z and G is sensitive and "picky" when it comes to its alignment characteristics. The Rear upper Camber is crucial to the turning capabilities and characteristics of the G and Z, these Rear-Upper A-Arms allow the adjustment of more Negative and Positive correction in the Rear and are perfect for any driver looking to properly tune their machine for performance. The Powder-coated Steel Construction also adds for durability and wear against demanding competitive conditions and rough driving surfaces as well. - Nissan 350z 2003-2008 - Nissan 370z 2009-2017 - Infiniti G35 2003-2008 - Infiniti G37 2009-2013 -Allows adjustment of Rear Upper Camber Arm. -Powder-coated for durability against the elements -High Strength steel construction protects against stresses of competition.NOTE: All Megan Racing products products are deemed for "off-road use only"