ISR Pro Series Coilovers - Nissan 370Z Z34 G37 Q60 - True Type

Our Pro Series coilovers in True Type construction for the Z34 platform and its Infiniti cousins. Eliminates the divorced rear spring that the factory chassis uses, which unlocks the bucket-delete approach and a far wider range of rear adjustment when paired with our matching toe arms. 32-way adjustable damping, 12k front and 8k rear springs.

What It Does

Replaces the factory suspension with a fully adjustable coilover setup designed to handle both street use and track work without forcing you to pick one. The True Type construction is the key feature here: instead of using the factory divorced rear spring bucket, the spring and damper are integrated in the rear coilover assembly. That means you can delete the rear bucket arm entirely and run a matching bucket-delete toe arm, which opens up adjustment range and makes alignment work far less of a fight. 32-way damping adjustment gives you genuine tuning range, and the 12k/8k spring rate split is tuned for a balance of street comfort and circuit precision.

Fitment

Fits the following V36-platform and Z34-platform vehicles:

• Nissan 370Z Z34 (2009+)
• Infiniti G35 Sedan (2007-2008)
• Infiniti G37 Coupe and Sedan (2008-2013)
• Infiniti Q40 (2014-2015, G37 sedan rebadge)
• Infiniti Q60 (2013-2015, G37 coupe rebadge)

To take full advantage of the True Type rear, pair these with an ISR rear bucket-delete toe arm matched to your specific chassis. The toe arm fits differently for 370Z/G35 Sedan/G37 Sedan/Q40/Q60 sedan applications vs. the G37 Coupe.

Features

• 32-way adjustable damping
• 12k front / 8k rear spring rates
• True Type rear (eliminates divorced rear spring; enables bucket delete)
• Street-comfortable, track-capable tuning

What's in the Box

• 2x Front coilover assemblies
• 2x Rear coilover assemblies
• 1x Spanner wrench set

Product Details

Brand: ISR Performance

Part Number: IS-PRO-Z34-T

Type: Pro Series Coilovers, True Type

Vehicle Fitment: Nissan 370Z (Z34, 2009+), Infiniti G35 Sedan (07-08), G37 (08-13), Q40 (14-15), Q60 (13-15)

Damping Adjustment: 32-way

Spring Rates: 12k front / 8k rear

Rear Construction: True Type (eliminates divorced rear spring)

Intended Use: Street and track

Sold: As a complete set (4 coilovers + spanner wrench)

Related: Pair with a matching ISR rear bucket-delete toe arm; chassis-specific between sedan and G37 coupe applications

Legality: Off-road and competition use only