Swift Helper/Tender Springs R53 Engine Parts the leading brand worldwide for

the leading brand worldwide for height adjustable coilover systems

Available in two styles: pull up and pull down in two colors each: black and blue

Adding caster will also give a more positive on center feel at speed

Because its a factory part it is a direct fit ready to go

The diameter

Swift Helper/Tender Springs R53 Engine Parts the leading brand worldwide forAssist Springs Get the best of both worlds, Swift assist springs provide a dynamic step linear rate. Like our helper springs, the assist springs are designed to be fully compressed at static height. Every one of our assist springs compress to the exact same height. This allows drivers to change assist springs without resetting the perch on the coilovers so the ride height isn't affected. Heavier rates of assist springs over helper springs are used to