
XYZ Racing Drag Racing Coilovers — Smart FORFOUR (W454) 2004-2007
SKU: W454-DG
- IncludesFull set of 4 (front + rear)
- Spring rate (F/R)12 / 14 kg/mm
- Top mountFront: Pillow ball + rubber / Hardened rubber · Rear: OE (factory) mount
- Lead time10–15 working days
Fits Smart FORFOUR (W454) (2004-2007) chassis W454
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The W454 Forfour shares its underpinnings with the Mitsubishi Colt of the same era, which means a front-drive layout, a short wheelbase and a tall, light body that was never set up to put power down off the line. That is exactly the problem the XYZ Racing Drag Racing coilover for the Smart Forfour (W454) is built to attack. It is a launch-focused setup for 0-400 metre work, where what happens in the first car length decides the run.
On a front-wheel-drive chassis like the W454, traction off the line is everything, and a tall city-car body wants to squat and unload the nose at exactly the wrong moment. This kit is configured to manage that weight movement deliberately rather than fight it.
What this coilover does for your 2004-2007 Smart Forfour
The damping and spring setup is tuned to shift weight between the front and rear axles in the instant you launch, loading the driven front tyres so they compress harder into the road. That added compression is what cuts the dead time of a spinning wheel and gets the W454 hooked up and pulling sooner. Through the rest of the run the same control keeps the short-wheelbase Forfour planted and stable as speed builds, instead of getting light and nervous near the top end. You also get height adjustment to set a launch-friendly stance and corner balance the car for a straight, even departure.
About the Drag Racing coilover
XYZ Racing designed this coilover specifically for 0-400 drag racing, and the same platform is offered across front-wheel-drive, rear-wheel-drive and four-wheel-drive applications. The defining idea is managed weight transfer: the setting deliberately moves load front-to-rear according to which axle drives the car, forcing the driven tyre into greater compression at the moment of launch. The payoff is reduced wheel idle time off the line and improved high-speed stability as the run develops. It is a single-purpose tool, valves and rates chosen for repeatable launches rather than fast-road comfort or circuit versatility, with ride-height adjustment to dial in the rake and stance a drag setup needs.
Fitment for the Smart Forfour (W454)
This kit is built for the W454-generation Smart Forfour produced between 2004 and 2007. Confirm your car carries the W454 chassis code before ordering, as it is distinct from the later 453 Forfour, and check your spec against the configurator options below.
What buyers also search for
- Smart Forfour W454 drag racing coilovers for quicker 0-400 launches
- FWD launch suspension that loads the driven front tyres harder
- W454 Forfour height-adjustable coilovers for a corner-balanced drag stance
- Smart Forfour suspension upgrade focused on straight-line stability
- 2004-2007 Forfour coilover kit for reduced wheelspin off the line
Set your ride height and spec for the run you have in mind – configure yours below.
Top mounts included with your kit
Every XYZ Racing coilover kit ships with the upper mounts listed below for your exact chassis — no extra parts to source.
Front
Pillow ball + rubberP+Pillow-ball upper with a rubber insert — adds steering precision and camber adjustability while keeping some of the factory mount’s harshness damping.
Hardened rubberRHardened rubber upper — firmer than the factory bush for tighter response while retaining road-friendly noise and vibration isolation.
Rear
OE (factory) mountOERetains the OEM (factory) upper mount — preserves the original ride comfort, noise and vibration behaviour for a stock-like feel.
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