ISR Pro Series Coilovers - Nissan 370z Z34 G35 Q60

The ISR Performance Pro Series Coilovers for the Z34/G35/G37/Q40/Q60 platform are the higher-end coilover tier for the late Z/G/Q lineup. 32-way adjustable damping, 12K front / 10K rear spring rates, front pillow-ball upper mounts, Japanese bearings throughout. Non-true-type construction using an OE-style spring-and-bucket rear setup. Comes complete with front coilover assemblies, rear springs, rear shocks, and a spanner wrench set.

What It Does

Coilovers for the Z34 / G35 / G37 / Q40 / Q60 platforms. 32-way damping adjustment covers daily-driver-comfortable to track-day-aggressive. The 12K front / 10K rear spring rates are noticeably stiffer than our 240SX Pro Series rates (8K/6K), reflecting the heavier curb weight and the more aggressive use case typical of these chassis. Japanese bearings handle sustained load without development of slop, and the front pillow-ball upper mounts let you dial in front camber at the strut top.

Construction Note

These are NON true-type coilovers and utilize an OE spring-and-bucket rear setup. The rear retains the factory spring bucket position rather than running a spring-on-damper true-type configuration. If you want a true-type rear (typically required for bucket delete toe arm setups), this is not the kit for you. Pair with our IS-RCA-Z334 rear camber kit and the ISR Pro Series toe arm for full alignment correction on lowered Z platform builds.

Fitment

• Nissan 370Z (Z34) 2009+
• Infiniti G35 (2006+)
• Infiniti G35 (2007-2008)
• Infiniti G37 (2008-2013)
• Infiniti Q40 (2014-2015)
• Infiniti Q60 (2013-2015)

What's in the Box

• 2x front coilover assembly
• 2x rear springs
• 2x rear shocks
• 1x spanner wrench set

Product Details

Brand: ISR Performance

Part Number: IS-PRO-Z34

Type: Pro Series Coilovers (non true-type)

Vehicle Fitment: 370Z (Z34) 09+, G35 06+, G37 08-13, Q40 14-15, Q60 13-15

Damping: 32-way adjustable

Spring Rates: 12K front / 10K rear

Upper Mounts: Front pillow-ball

Bearings: Japanese

Rear Construction: Non true-type (OE spring-and-bucket retained)

Pair Naturally With: IS-RCA-Z334 (rear camber kit), ISR Pro Series Z platform toe arm

Sold: Complete set (4 corners + spanner wrench set)

Legality: Off-road and competition use only