Production SS (RPO WU8)	RPO 1LE	RPO Y2Y         SLP Bilstein	Firehawk                 (non-Bilstein)	RPO Y3B Chev RS     RPO Y3C Pont. GT
Front Suspension
Upper Control Arm	GM Prod. V-8	Higher durometer bushings	GM Prod. V-8	GM Prod. V-8	GM Prod. V-6
Lower Control Arm	GM Prod. V-8	Higher durometer non-voided bushings	GM Prod. V-8	GM Prod. V-8	GM Prod. V-6
Stabilizer Bar	32 mm hollow	35 mm hollow	35 mm hollow	32 mm hollow	32 mm hollow
Stab. Bar End Links	GM Prod. V-8	Optimized Length and Shape	Optimized Length and Shape	GM Prod. V-8	Optimized Length and Shape
Stab. Bar Brackets	GM Prod. V-8	Reinforced Prod.	Reinforced Prod.	GM Prod. V-8	Reinforced Prod.
Springs	GM Prod. Straight Rate	GM Prod. Straight Rate	SLP Progressive Rate	GM Prod. Straight Rate	GM Prod. Straight Rate
Spring Rates	51N/mm        (290#/in)	63N/mm        (360#/in)	39-78N/mm        (223-448#/in)	51 N/mm    290#/in	39 N/mm     225#/in
Shocks	de Carbone	Koni	Bilstein	de Carbone	de Carbone
Trans. Mount	GM Prod. V-8	Higher Durometer	1LE	GM Prod. V-8	GM Prod. V-6
Rear Suspension
Trailing Arm	GM Prod. V-8	Higher Durometer	1LE	GM Prod. V-8	GM Prod. V-6
Panhard Bar	GM Prod. V-8	Higher Durometer	1LE	1LE	GM Prod. V-6
Springs	GM Prod. Straight Rate	GM Progressive Rate	SLP Progressive Rate	GM Prod. Straight Rate	GM Prod. Straight Rate
Spring Rates	19.9N/mm     115#/in	23-30N/mm     130-170#/in	17-24N/mm          97-136#/in	19.9N/mm     115#/in	19.9N/mm        115#/in
Stab. Bar	19mm	21mm	21mm	19mm	19mm
Bold=SLP new for '01