Eibach Spring Rubber - Durometer 80 (Yellow) - SR.500.0080 fits_2004-2008`Nissan`350Z Dry carbon is the highest-quality

Dry carbon is the highest-quality form of carbon fiber available created using a pre-preg carbon material that is molded and cured in a sealed vacuum autoclave

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thermal protections and cell balancing

2L V10 equipped models

Eibach Spring Rubber - Durometer 80 (Yellow) - SR.500.0080 fits_2004-2008`Nissan`350Z Dry carbon is the highest-qualityUsed to add progressive rate to your linear race spring, Four different durometers (60D 90D) available, Fits springs with 2. 5" to 3. 0" inside diameter. Features & Benefits Four different Spring Rubber durometers (50D 90D) available for desired rate tuning. Spring Rubbers are used to add progressive rate to your linear race spring. Adds approximately 1. 5" of solid height to your spring. Fits springs with 5. 0" outside diameters. Made in the U. S. A.