Performance Drop in Strut/Lowering Spring Combo Vehicle:2004+ Grand Prix This is where a stiffer/larger

This is where a stiffer/larger sway bar setup becomes beneficial

The factory LSJ rotor is 11

(4) New top plates

We have not confirmed this

*Does not fit V8 W-body vehicles

Performance Drop in Strut/Lowering Spring Combo Vehicle:2004+ Grand Prix This is where a stiffer/larger*Does not fit V8 W body vehicles This is a complete drop in replacement suspension for your W body. This will lower the car about 2" in the front and 1 1 2" in the rear compared to new OEM components. Includes: (4) KYB GR2 Struts (4) ZZP Coil springs (4) New strut boots (4) New Rubber isolators (spring pads) (4) New top plates (4) Top plate "anti pogo" washers Since the car is lowered, we highly recommend our shorter dog bones (ZZP Billet or Standard)