Through the years the soft rubber bushings deteriorate after constant flexing and vibration as well as being punished through weathering; this can cause them to tear and may seriously damage your engine and transmission. Megan Racing has developed a Hardened-Rubber Reinforced Engine Mount for Nissan Skyline applications (non HICAS). These reinforced mounts are perfect for the enthusiast who is looking to get the most from their vehicle as they will allow more energy to be transferred to the wheels instead of absorbing the energy into the soft rubber. APPLICATION: -Nissan Skyline 1989-1991 R32 GTS-t (RB20DET), R32 GTR (RB26DETT) -Nissan Skyline 1993-1998 R33 GTS-4 (RB25DE), R33 GTR (RB26DETT) -Nissan Skyline 1999-2002 R34 GTR (RB26DETT) (DO NOT fit models with HICAS four wheel steering system) - Hardened Rubber utilized is rated at 70A on the durometer scale. - 2pc/set