UMI Performance A204-350S Front Coilover Double Adjustable Lowering Kit Spring Rate - 350lb

The UMI Performance A204-350S is a front coilover kit featuring a high-quality hybrid coil spring paired with a Viking 19-way double adjustable shock. This kit is designed for small block cruise or drag race applications with lightening, offering a 350 lb spring rate and up to 3 inches of ride height adjustment — all without requiring a coil spring compressor.

Every Viking shock in this kit is individually built, dyno tested, and serialized at Viking's facility in Lakeville, Minnesota, ensuring consistent quality and performance. Shocks can be rebuilt at Viking or an authorized Viking rebuild center for long-term serviceability.

Key Features:

• Hybrid coil spring — Made in USA
• Includes (2) front coilover shocks — double adjustable
• 19-way independent compression and rebound damping adjustment (361 possible combinations)
• 350 lb spring rate — suited for small block cruise or drag race with lightening
• Bearing-mounted bottom for increased reliability and performance
• Adjustable ride height from factory to 3" lower — no spring compressor required
• Brilliant protective finish for long-lasting appearance
• Rebuildable shocks at Viking or authorized rebuild centers

Spring Rate Options Available:

• 250 lb — 11" tall springs for drag race only; serious lightening required
• 350 lb — Small block cruise or drag race with lightening required
• 450 lb — Small block cruise or big block drag race
• 550 lb — Small block handling; all big blocks except drag

Lower Mounting Options:

• Polyurethane Mount — Recommended for mild street applications; provides ride comfort and reduced harshness
• Bearing End Mount — Recommended for corner carving, drag racing, auto-x, and road race; offers increased reliability and performance

Optional Accessories (sold separately):

• Spanner Wrench — Required for ride height adjustment while the shock remains mounted
• Thrust Bearing Kit — Placed between the spring and spring seat for easier, smoother height adjustments; highly recommended but not required for installation

The A204-350S coilover kit is fully compatible with UMI's lower control arms as well as factory lower A-arms. For optimal handling performance, pair with UMI's geometry-corrected upper A-arm loaded with a tall ball joint. Whether you're heading to the drag strip, autocross course, or weekend cruise, this Viking-built coilover kit delivers the tunability to suit any occasion.