; Provides springs of various rates to allow the racer to custom tailor the vacuum secondary opening and closing rate to best suit their combination; Contains seven springs color coded from light to heavy; Instructions included*Not legal for sale or use on pollution-controlled vehicles
  • Has springs of various rates to allow custom tailoring of the vacuum secondary opening & closing rate
  • Contains 7 springs color coded from light to heavy
  • Instructions included
  • Not legal for sale/use on pollution-controlled vehicles.

Fast Efficient Shipping

Through our distribution network Deliveries can be as fast as Next Day Delivery.
Delivery times vary by destination, tracking information is provided with every purchase.

Get it Installed

JB's Power Centre offers on-site professional installation services in Calgary and Edmonton, AB.
We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

* Extend your products Manufacturer Warranty

All products include a manufacturer warranty, but you can extend this warranty with
JB's Purchase Protection Plan
*Available on select products.