XYZ Racing Street Advanced Coilovers — Nissan SKYLINE R34 (Rear EYE) 1999-2002

The R34 Skyline’s nose-heavy RWD variants – the GT-T and 25GT running the long RB-series inline-six ahead of the front axle – carry an understeer bias that the factory’s comfort-priority damping does little to address. On demanding roads, that translates to a car that rolls more than its chassis architecture suggests it should, and loses front-end precision at exactly the moment you want it most.

The Street Advanced coilover was developed with this use case in focus: a road car driven seriously, with track days in the mix where the setup must perform under sustained cornering load. XYZ Racing’s engineering team spent years refining this series through international motorsport programmes, and that development history is evident in how the damping range is calibrated across its 720 available settings.

What this coilover does for your 1999-2002 Nissan Skyline R34

Setting the Street Advanced firm through the 720-step adjustment range reduces the lateral weight transfer that blunts the R34 GT-T’s front-end response under load – the same characteristic that makes the factory car feel slightly disconnected from the driver’s inputs at pace. Dropping ride height lowers the Skyline’s centre of gravity and tightens roll centre geometry, which in practice makes the car more willing to rotate on entry rather than ploughing. The RB25DET’s torque delivery rewards a stiffer rear tune: with less body pitch under acceleration, the driven wheels maintain more consistent contact as the engine pulls through mid-corner. Set soft, the same hardware manages UK road surfaces without harshness – the adjustment range is wide enough to span both requirements without swapping dampers between uses.

About the Street Advanced coilover

The Street Advanced is XYZ Racing’s dual-purpose road and track-day coilover line, built specifically for owners who want a single hardware configuration covering normal driving and circuit sessions. Its 720-way damping adjustment is the defining engineering decision: one knob spans from a soft, road-appropriate setting through to a firm, controlled track tune, covering the full likely-use spectrum without hardware changes between sessions. XYZ Racing’s professional development team spent years calibrating this series, drawing on competitive motorsport testing across multiple international programmes rather than design-lab simulation alone. The outcome is a damping response that tracks adjustment input consistently, which makes the Street Advanced as useful to a driver still discovering their preferred setup as it is to one arriving with specific spring rate targets in mind.

Fitment for the Nissan Skyline R34 (1999-2002)

This kit covers the Nissan Skyline R34 (Rr EYE) from 1999 to 2002, listed under chassis code NI42. The fitment applies to the RWD-suspension variants in this R34 generation; confirm your specific trim and suspension configuration against the chassis code before ordering.

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The Street Advanced is available in a single specification for the R34 Skyline platform – configure yours below.