QA1 Pro Coil System Spring - 4.125 in ID - 10 in Length - 550 lb

Available in 7", 9", 10", 12", 14" and 16" lengths, QA1 offers an assortment of high travel springs with a silver powder coated finish. Made in the USA, these 2" I.D. high travel springs are manufactured from specially designed high-tensile, chrome silicon alloy spring wire, which allows them to have fewer coils and a smaller wire diameter. As a result, these springs are lighter and have increased travel due to the larger distance between the coils. These lighter springs reduce unsprung weight and react faster, optimizing suspension performance. In addition, this high-grade material, along with careful heat-treating and post-processing, allows for greatly improved fatigue life, and the coil design allows the springs to be compressed to coil-bind without affecting spring rate or free height. These new high travel springs are silver powder coated and ground at both ends for straight, consistent and accurate operations. In addition, all QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions. Chrome Silicon Steel, All QA1 springs are manufactured using the highest quality materials for high strength, consistency and long life. Cold Wound - Heat Treated - Shot Peened, All QA1 springs go through intensive manufacturing processes to ensure consistency, accuracy and durability. Squared Ends, All QA1 springs are ground at both ends to ensure straight, consistent and accurate operation. Lengths and Rates Marked, All QA1 springs are clearly marked with the free length of the spring and spring rate for quick and easy identification. Made in the USA, QA1's high travel springs are proudly made in the USA. LIFETIME GUARANTEE, All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions.

Product Description:

QA1 Precision Products invites you to upgrade your suspension with the top names in racing: QA1 Shocks and Carrera Shocks. QA1 was founded in 1993 and quickly became the #1 name in rod ends and spherical bearings sold into performance racing. In 2004, QA1 purchased Carrera Shocks and is now the #1 manufacturer of performance racing shocks. QA1 Shocks now offer QA1 double adjustable shocks, QA1 monotube shocks, QA1 gas pressurized shocks and QA1 chrome plated shocks and springs. QA1 Shock Absorbers utilize many unique processes and components in its shock absorbers, with a tremendous selection available. QA1 offers a complete line of QA1 racer revalveable shocks, QA1 rebuildable and repairable circle track shocks, QA1 racing shock absorbers and QA1 stock mount shocks. We carry QA1 Racing Shocks, QA1 Coil-Over Shocks, QA1 50 Series Steel Replaceable Bearing Shocks, QA1 60 Series Aluminum Smooth Body Shocks, QA1 62 Series Aluminum Threaded Body Shocks, QA1 82 Series Aluminum Threaded Small Body Shocks, QA1 64 Series Aluminum Double Adjustable Threaded Body Shocks and QA1 Stock Mount Street Stock Shocks. QA1 Springs are manufactured with the highest quality chrome silicone wire available, are double heat-treated, double shot-peened powder coated or chrome plated. Each spring has been designed to be as light as possible without sacrificing performance. QA1 Rod Ends are the #1 name in rod ends and QA1 has the largest selection in the industry. We offer QA1 Steel Rod Ends and QA1 Aluminum Rod Ends. Be sure to check out our QA1 aXMa Series Chrome Moly Steel Rod Ends, QA1 aAMa Series Aluminum Rod Ends, QA1 aCMa Series Carbon Steel Rod Ends and QA1 aPCMa Series Chrome Moly Steel Rod Ends. QA1 Rod Ends are engineered for unbeatable performance, nothing is better! Every QA1 product has been engineered to outperform the competition at an affordable price. Get in the driveras seat and take control of your suspen