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

Holley Commander MPI

508 lb/in Spring Rate

Nissan 370Z 2009-20

Assembled with an olive that threads onto the double-helix ribbed inner liner of the hose for positive engagement and retention of the hose-ends

The Husky Liners

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