Swift Bulletproof Coil-Over Spring - 3.5" ID x 16" - 160 lb. Intercom External Speakers insert a blade into groover

insert a blade into groover

0001" -- far tighter than other manufacturers

High stress components are made of high-strength 2024-T8 grade aluminum instead of 6061-T6 aluminum used by competitors

Containing a proprietary mixture of lubricants and corrosion inhibitors

Swift Bulletproof Coil-Over Spring - 3.5" ID x 16" - 160 lb. Intercom External Speakers insert a blade into grooverINCREASE TRACTION, LESS UN SPRUNG MASS, MORE STROKE, INCREASED HANDLING. THE ONLY THING YOU WILL BE LOSING IS TRACK TIME. Swift Springs manufactures springs with differing rates for a variety of circle track racing applications. With options for both dirt and asphalt tracks, Swift has a wide range of coil spring formats, including coil over, dual rate, bump springs, and more. Swift Springs superior engineering has provided the next generation of