Eibach Bump Spring 2" I.D x 2.25" 850lb Helmet Forced Air routed to the motor from

routed to the motor from outside of the car or fastened to a plastic duct

It is ideal for cars that do not have an onboard air system

Steel band mounting brackets for our 4-1/4" Dia

Derale has integrated their high performing shrouded Powerpacks with the ultimate fan controller

Eibach Bump Spring 2" I.D x 2.25" 850lb Helmet Forced Air routed to the motor fromEngineered for maximum travel and consistency in the most extreme conditions, the Eibach BUMP SPRING System offers limitless tuning options for "soft spring" Dirt and Pavement Racers. Maximum Travel in All Rates with Repeatable Performance Block and Sag Resistant Increases Aero Efficiency, Grip and Control at the Limit Made By Eibach in the U. S. A. Offers limitless tuning options for "soft spring" Dirt and Pavement RacersEibach has been committed to