HKS Hipermax R Coilovers - Mazda RX-8 SE3P 04-12

Utilizing the latest suspension technology, this system achieves a higher spring rate while maintaining everyday comfort, delivering a noticeable improvement in driving performance and handling precision. Specially engineered to address the structural weaknesses of the rear suspension, the kit incorporates new dedicated components that allow for a wider range of ride height adjustments and the ability to use longer springs, enhancing both functionality and performance. Compared to the previous MAX IV SP model, the revised design offers easier rear height adjustments without the need to remove and reinstall the springs, greatly improving convenience for fine-tuning setups. Additionally, the integration of a new helper spring for the rear ensures adequate extension stroke, significantly enhancing rear tire grip—especially the inside tire during circuit driving, contributing to improved stability, traction, and cornering performance. This suspension is designed for drivers who demand sharp handling, easy adjustability, and comfort for both street and track use.

To address the RX-8's unique problem of difficulty in securing rear stroke, adopted a newly designed rear case and helper spring to ensure a larger stroke amount. The rear stroke is secured with the aim of suppressing the spin of the inside rear tire, not only with a mechanical LSD but also with the original LSD. The circuit test was conducted with the standard size 265/35R18 (ADVAN A052) based on the concept of "specifications close to the user's usage conditions." The vehicle height adjustment range was selected so that ground clearance could be secured even with the above tire size. It was designed with the possibility of further development after purchase, such as increasing camber beyond the original arm state, and with the aim of improving lap times in mind.

Application

• MAZDA RX-8 (2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012)

Features

• Spring Rate N/mm (kgf/mm): F=196 (20) / R=118 (12)
• Spring Length (mm): F=150 (Straight) / R= - (Special)
• Preset Height (mm) (Upper limit / Lower limit): F=-19 (０ - -67) / R=-18 (0 - -46)
• Upper Mount: F=Pillow / R= Stock
• Adjustable Spring Rate when shipped (Changeable rate N/mm (kgf/mm)): F= Possible ±20 (2) / R= Not possible