H&R 29180-1 Street Performance Coilover Kit Mono-Tube Adjustable Lowering

H&R 29180-1 Street Performance Coilovers deliver a refined balance of ride comfort and handling precision engineered specifically for street use. Unlike conventional twin-tube shock absorbers, these coilovers are built around a mono-tube gas shock construction — a state-of-the-art design that provides superior heat dissipation, more consistent damping, and improved overall response compared to traditional designs.

H&R is widely recognized as the originator of the true street coilover system, and the 29180-1 upholds that legacy. Each shock unit is individually tuned and paired with a progressive rate spring engineered from the ground up to complement the shock's specific valving characteristics. The result is a cohesive, finely calibrated suspension system rather than a collection of mismatched components.

Key Features:

• Mono-tube gas shock construction for superior performance over twin-tube designs
• Fully threaded shock body allows precise, tool-based ride height adjustment
• Adjustable lowering range of approximately 1.0 to 2.5 inches
• Progressive rate springs tuned to match shock valving for a cohesive suspension system
• Engineered for street use — suitable for daily drivers through serious performance enthusiasts
• Improved handling response and cornering stability without sacrificing ride comfort

The H&R 29180-1 coilover kit is an ideal upgrade for drivers seeking meaningful suspension improvement with the reliability and engineering pedigree that H&R has built over decades in the performance suspension market.