These shocks are specially modified to fit the 1988 Fiero and work extremely well as a retrofit. These shocks have 4 position external rebound adjustment. They are easily adjusted while installed on the car. Our kit includes all of the hardware and instructions to install these performance shocks onto your stock A-arm. West Coast Fiero have the only Koni performance shocks for the 1988 Fiero. This is the lease expensive option that we could find from Koni.