QA1 High Travel Coil-Over Spring - 2-1/2" I.D. x 10" Tall - 150 lb. 34013BL 2-1/2 in Stroke

2-1/2 in Stroke

Holley Commander MPI

Heavy Gauge BaseFord Racing offers a variety of products for hard core racing and street vehicles

Edelbrock's Performer-Plus lifter sets are designed for use with Edelbrock Performer-Plus or equivalent camshafts

Nissan 370Z 2009-20

QA1 High Travel Coil-Over Spring - 2-1/2" I.D. x 10" Tall - 150 lb. 34013BL 2-1/2 in StrokePowder Coated, Chrome Appearing Silicon Manganese SteelAll QA1 springs are manufactured using the highest quality chrome silicone. This material offers high strength, consistency and longer life. Cold Wound Heat Treated Shot PeenedAll QA1 springs go through intensive manufacturing processes to ensure consistency, accuracy and durability. Squared EndsAll QA1 springs are ground at both ends to ensure straight, consistent and accurate operation.