
XYZ Racing Drag Racing Coilovers — Daihatsu SIRION Rear: Non-ride height adjustable 1998-2005
SKU: DI04-DG
- IncludesFull set of 4 (front + rear)
- Spring rate (F/R)12 / 14 kg/mm
- Top mountOE (factory) mount
- Lead time10–15 working days
Fits Daihatsu SIRION Rear: Non-ride height adjustable (1998-2005) chassis DI04
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The DI04 Sirion is a featherweight front-driver, and on a drag strip that light nose works against you. The instant you launch, weight pitches rearward and the driven front tyres go light at the exact moment they need to bite. The XYZ Racing Drag Racing coilover for the Daihatsu Sirion is built around that problem rather than around lap times.
This is a 0 to 400 metre setup, not a circuit kit. Where the standard Sirion suspension lets the chassis squat and wash away the first car length in wheelspin, this spring-and-damper package is valved to manage the loads a hard launch throws at a small FWD hatch and to get the power down cleanly off the line.
What this coilover does for your 1998-2005 Daihatsu Sirion
The point of this kit is repeatable launches. By controlling how the Sirion shifts weight under acceleration, it keeps load over the driven axle through the critical first few metres, so the front tyres hook up instead of lighting up. You feel that as less bog, less wasted spin, and a car that tracks straight as the speed climbs rather than getting nervous near the top of the run. On a chassis this light, that difference between a clean sixty-foot and a smoky one is often the whole time slip.
About the Drag Racing coilover
XYZ Racing designed this series specifically for 0 to 400 sprint work, and the same design logic covers front-wheel-drive, rear-wheel-drive and four-wheel-drive cars. The setting manages how weight moves between the front and rear axles during the launch, biasing it towards whichever wheels actually drive the car. That forces the driven tyre into greater compression, which loads the contact patch and cuts the dead time the wheel spends spinning before it grips. The same calibration that helps a car leave the line also keeps it stable as it gathers speed down the strip. It is a focused, single-job kit rather than an all-rounder, and the spec here is the fixed-height drag configuration.
Fitment for the Daihatsu Sirion (1998-2005)
This kit is matched to the DI04 Sirion across the 1998 to 2005 model run. It is supplied in the non-ride-height-adjustable drag specification, so the geometry is set for launch behaviour rather than for corner-weight fettling. Confirm your chassis code and year against the figures above before ordering.
What buyers also search for
- Daihatsu Sirion drag coilovers for 0 to 400 metre launches
- DI04 Sirion suspension that reduces wheelspin off the line
- 1998-2005 Daihatsu Sirion FWD drag setup for grip and straight-line stability
- Lightweight Sirion drag racing coilover kit with launch-focused valving
Pick your DI04 Sirion drag spec and build yours below in the configurator.
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.
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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