XYZ Racing Top Sport Coilovers — Nissan SKYLINE R34 BNR34 4WD (Rear FORK) 1999-2002

The BNR34’s rear fork lower arm configuration is one reason the fitment field for a proper coilover kit is so narrow – not every manufacturer bothers, and the ones that do need to account for how that geometry interacts with the ATTESA E-TS torque distribution under hard cornering loads. The GT-R variant of the R34 Skyline was a sophisticated platform from the factory, but its stock damping and spring rates were calibrated around road compliance first, circuit use a distant second.

The XYZ Racing Top Sport coilover for the 1999-2002 Nissan Skyline R34 BNR34 4WD corrects that bias. With spring rates running 2kg/mm higher than a street-spec equivalent and damping set 30-50% stiffer, this is a kit that takes track day use seriously without turning a road car into something you dread on the school run.

What this coilover does for your 1999-2002 Nissan SKYLINE R34 BNR34 4WD (Rr FORK)

ATTESA E-TS operates on wheelspin signals, but it’s body roll and pitch that degrade the quality of those inputs under circuit conditions – every degree of unwanted chassis movement delays the system’s torque-split response. Firmer spring rates tighten that feedback loop, making the car more consistent through entries and more predictable on power. The 30-50% damping increase holds the body in check over the kind of mid-corner bumps that would upset a softer setup, keeping all four tyres in contact with the road when the RB26DETT is pushing hard. On the road between sessions, the same compression control absorbs surface irregularities that would unsettle a race-spec kit, managing large bumps without transmitting sharp impacts through the shell.

About the Top Sport coilover

XYZ Racing developed the Top Sport specification directly from competition use – the calibration reflects what the company’s own racing experience identified as the threshold between effective track damping and daily-driver tolerance. Spring rates are set approximately 2kg/mm higher than street equivalents, and the damping range runs 30-50% above road-going settings, which is enough to suppress significant body movement and restore tyre traction under load without the ride deteriorating to the point where the car becomes unpleasant outside a circuit. The result is a coilover that handles the impact of uneven road surfaces and absorbs larger bumps without allowing body shock to ripple through the chassis. It’s the correct specification when the car sees circuit sessions at least occasionally but lives predominantly on the road.

Fitment for the Nissan SKYLINE R34 BNR34 4WD (Rr FORK) (1999-2002)

These coilovers are engineered specifically to NI41 chassis code, covering the Nissan Skyline R34 BNR34 in 4WD configuration with the rear fork lower arm layout across the 1999-2002 production span. The BNR34 designation identifies the GT-R variant only – this kit does not cross-fit the R34 non-GT-R body styles, which use a different rear suspension architecture. Verify your chassis code before ordering; the rear fork fitment designation is not interchangeable.

What buyers also search for

• Nissan Skyline R34 BNR34 coilover upgrade for track day and aggressive road use
• R34 GT-R suspension that complements ATTESA E-TS torque distribution
• Nissan BNR34 coilover kit with stiffer spring rates than factory road spec
• XYZ Racing Top Sport coilovers for Skyline R34 4WD rear fork configuration
• R34 coilover setup balancing circuit stiffness with road compliance for daily use

Build your R34’s suspension spec using the configurator below – fitment options and height adjustment are set at checkout.