The Eibach 6389.320 is a complete front and rear anti-roll kit for the Nissan GT-R R35, part of Eibach's ANTI-ROLL-KIT line. The front sway bar is tubular and two-way adjustable, and the rear sway bar is tubular and five-way adjustable. Eibach positions the kit as a way to increase stability, reduce body roll, and increase grip. Stock bars can't be tuned, so this set gives you a way to dial in turn-in and understeer balance without buying a new bar. Eibach's set generally gets quite good reviews among owners, and the bars are hollow, which keeps the weight penalty of a thicker bar small.
Fitment: the manufacturer's application listing covers 2009-2024 Nissan GT-R R35, while the product name targets the 3.8L V6 twin-turbo cars from 2009 to 2011, so confirm your year against your VIN before ordering. If you only need one end of the car, Eibach sells a front sway bar kit only and a rear sway bar kit only separately. For the install, Eibach's instructions for its anti-roll kits follow a clear sequence: keep the nuts and bolts for reinstallation, lubricate the new middle bushings, reuse the factory brackets, and tighten all fasteners to factory torque specifications. Search terms this kit matches include R35 GT-R front and rear sway bar, 35mm front 16mm rear anti-roll bar, adjustable GT-R sway bar kit, and 2009-2011 GT-R 3.8 twin turbo anti-roll kit.
The manufacturer lists the front-only kit (6389.310) and rear-only kit (6389.312) as separate parts. The 6389.320 is the combined front and rear set, so you get both bars and their matching adjustability in one order.
The manufacturer's application listing covers 2009 through 2024 R35 GT-R models. The product name specifies the 3.8L V6 twin-turbo from 2009 to 2011, and listings vary on the exact year range, so confirm fitment for your specific car with the manufacturer before ordering.
The manufacturer states the kit is compatible with both OEM and performance setups.
This is a bolt-on job for a competent home mechanic with a solid jack, a hoist or stands, and a torque wrench. The manufacturer's instructions for its anti-roll kits recommend using a hoist with a screw jack to cut installation time, and always working under a vehicle supported on safety stands with the wheels blocked. Start by loosening the end links at the bar arms and removing the bar's bracket bolts, then keep all factory hardware for reuse. Grease the new bushings with the supplied lubricant before fitting them, and set the bar to your desired stiffness before final tightening. Owners on user forums cite a rough installation time of about 1.5 hours per side set, but budget more if your car's front suspension components are tight or corroded. Common gotchas include bushings that seat unevenly and fasteners that need to be torqued in the correct order.
