> D2 Racing PRO Series lowering springs have been designed to give your car superior handling with an aggressive race look. Most other brands use a linear rate, but D2 utilizes a progressive rate for several reasons. A progressive rate allows a plush comfortable ride under normal travel, but since ...

D2 PRO Series lowering springs optimize and improve handling characteristics by offering a reduction in ride height while maintaining exceptional ride quality through the use of a progressive rate spring. All of our springs come with a Lifetime Warranty and are manufactured of 55 chrome silicon ...

The RS Series suspension kit is our most popular coilover. Featuring a 36-way damping and rebound adjustable monotube design, RS Series coilovers are perfect for the modified street car that also sees occasional track days. This coilover has separate height and preload adjustments allowing for ...

The Truhart StreetPlus Coilover system is a full monotube design coilover with integrated aluminum top mounts. The StreetPlus coilover is an ideal solution for today's budget-minded tuner looking to lower their vehicle and increase handling performance. The independently adjustable lower mount ...

D2 Racing RALLY Asphalt suspension kits are built using steel mounts, elongated spring and stroke with matched dampening properties, and 44mm pistons to maintain performance and endurance during long-term use. These coilovers feature an inverted monotube strut design and 36-way damping adjustment ...