Progressive front bump stops allows for the front end to dampen and reduce instant bump out the factor bumps give! This equates to a comfier ride and over all feel too the vehicle!
They help the shock on the last 30% of travel adding to the longevity of the shock itself also!
Please note some models have two bumpstops on each side! We recommend to just replace the ones towards the rear and run the factory ones towards the front!