XYZ Racing Street Advanced Coilovers — Infiniti M35 / M45 Y50 FUGA 2WD (Modified Rear Integrated) 2004-2009

The Y50-generation M35/M45 (sold at home as the Fuga) carries proper mass over a long wheelbase, and the standard rear suspension geometry on 2WD cars leaves plenty on the table once the factory dampers start to fade. XYZ Racing’s Street Advanced coilover kit replaces that setup with a fully adjustable platform built for owners who want their M35 or M45 sharper on a fast road without turning it into a compromise on the commute.

This is the Street Advanced spec, not the entry-level range: it sits between comfort-focused street kits and dedicated track dampers, aimed at drivers who want real control over ride height and damping feel without needing a trackside adjustment log. For a car this size, that adjustability matters more than it does on something small and light – you’re tuning out body movement, not chasing lap times.

What this coilover does for your 2004-2009 Infiniti M35 / M45

Fitted to the Y50 chassis, the kit’s 720-way damping range lets you set compression and rebound independently front and rear, so you can firm up body control through fast direction changes without making the low-speed ride harsh – a real consideration on a saloon this heavy. Dropping and levelling the ride height tightens the M35/M45’s stance and lowers the centre of gravity, which pays back directly in reduced roll through faster corners. The modified rear-integrated design means the kit is engineered specifically around this chassis’s rear suspension mounting points rather than adapted from a generic platform, so the geometry stays correct through the full range of adjustment. Because damping and height adjust independently, you can dial the car toward daily comfort in town and firm it up again before a run on your favourite road, rather than living with a single fixed compromise.

About the Street Advanced coilover

XYZ Racing developed the Street Advanced range over several years as its most widely fitted coilover, refined through testing across the company’s motorsport programme before being brought to road-car specification. It’s built as the dual-purpose option in the lineup – equally at home on a daily commute or a track day – and the 720-way damping adjustment is the headline feature, giving a far finer resolution of control than a basic 16 or 32-click damper. That range is split across separate compression and rebound circuits, so stiffening the car under braking doesn’t automatically stiffen it over broken surfaces too. XYZ pitches this kit at drivers who want to sharpen their car’s responses and control without stepping up to a full competition setup, and the construction reflects that brief: a monotube-style damper body sized for consistent performance across repeated adjustment rather than a single "set and forget" position. For an M35 or M45 owner, it’s the kit that lets the car’s chassis do more than the factory dampers ever allowed.

Fitment for the Infiniti M35 / M45 (2004-2009)

This kit is built for the Y50-generation Infiniti M35 and M45 (sold in Japan as the Fuga), chassis code IN08, across the 2004 to 2009 production run, specifically for 2WD cars with the modified rear-integrated fitment. Confirm your car is 2WD before ordering, since the rear mounting design differs from AWD Y50 variants and the two are not interchangeable.

What buyers also search for

• Infiniti M35 suspension upgrade for road and fast-road driving
• Infiniti M45 coilover kit with independently adjustable compression and rebound
• Y50 Fuga ride height and stance adjustment without losing daily comfort
• Infiniti M35 / M45 2WD coilovers for the modified rear-integrated chassis
• Street Advanced damping setup for a heavier saloon platform

Spec your ride height and damping range for the Y50 M35 or M45 and build yours below.