The GKTECH Polyurethane subframe bushes are a direct replacement of the standard items and ensure that movement of the subframe is kept to a minimum. They eliminate axle tramp whilst also raising the subframe which helps to correct the roll center on lowered vehicles. - ShA 80 Polyurethane - 4 Piece Set Vehicle Compatibility: - Nissan 180sx - Nissan S13 Silvia - Nissan S14 200SX - Nissan S15 200SX - Nissan Skyline R32 GTS-T - Nissan Skyline R32 GTR (may require the use of shims, available separately) - Nissan Skyline R32 GTS4 - Nissan Skyline R33 GTS-T - Nissan Skyline R33 GTS4 - Nissan Skyline R33 GTR (may require the use of shims, available separately) - Nissan Skyline R34 GTT - Nissan Skyline R34 GTR (may require the use of shims, available separately) - Nissan Cefiro A31 - Nissan 300ZX Z32