Swift Coil-Over Spring - Barrel Type - 2.5" ID x 12" -200-500 lb. BR40015 Spark duration of greater than

Spark duration of greater than 300 microseconds

1156 Style

65 mm Single Blade

this is a permanent solution that replaces a welded in O2 bung

1985-1995 Pontiac Firefly

Swift Coil-Over Spring - Barrel Type - 2.5" ID x 12" -200-500 lb. BR40015 Spark duration of greater thanINCREASE 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