Quick view Turbosmart Turbosmart Gen-V WG40/45 HP 40 PSI Spring Upgrade - Black/Red - TS-0550-3112 Compare $49.94 $44.99 When Turbosmart began making performance products back in 1997, a great amount of effort was put into the design and manufacturing process to ensure our products created a new standard. More hand-crafted than mass-produced, Turbosmart products quickly... Add to Cart Add to Cart