H&R 29431-1 Street Performance Coilover Kit Mono-Tube Adjustable Lowering

The H&R 29431-1 Street Performance Coilovers are precision-engineered for street driving enthusiasts who demand both improved handling and daily-driver comfort. Built around a state-of-the-art mono-tube gas shock construction, these coilovers deliver superior response and heat dissipation compared to traditional twin-tube shock absorbers — resulting in more consistent performance mile after mile.

H&R is the originator of the true coilover system for street use, and the 29431-1 continues that legacy with a fully engineered, matched system. Each shock is paired with a progressive rate spring specifically tuned to complement the shock's internal valving, creating a cohesive, finely calibrated suspension package right out of the box.

Key Features:

• Mono-tube gas shock construction for superior performance over traditional twin-tube designs
• Fully threaded shock body allows precise, adjustable ride height lowering
• Lowering range of approximately 1.0 to 2.5 inches for a sportier stance
• Progressive rate springs engineered specifically to match the shock valving
• Balances performance handling with everyday ride comfort
• Suitable for daily drivers through serious performance enthusiasts

H&R coilovers are a complete, bolt-in suspension upgrade that replaces the factory strut and spring assembly. The 29431-1 kit provides an ideal combination of lowered ride height, improved cornering response, and street-friendly compliance — without sacrificing the comfort needed for regular road use.