IAG Street Series Pitch Mount Bushing Kit 75A Durometer - Subaru STI 04-18, WRX 02-18 Cooling Accessories but the collars are something

but the collars are something akin to stronger stiffer bushings without the drastic vibrations associated with hard plastic/solid bushings

especially since the factory pulley has a mass of 4

These coilovers are a mono-tube shock design with a digressive piston and damping curve

This intake airbox is constructed of 16 gauge aluminum

blow-off acoustics and under-the-hood style to fit your needs

IAG Street Series Pitch Mount Bushing Kit 75A Durometer - Subaru STI 04-18, WRX 02-18 Cooling Accessories but the collars are somethingThe IAG Street Series Pitch Mount Bushing Kit is designed specifically for our CNC pitch mount. Our pitch mount is specifically designed with the ability to swap bushings for street or track use. The Street Series kit includes (x2) 75A durometer bushings that are slightly stiffer than the Subaru Group N mounts. The 75A durometer bushings reduce the motor and transmission movement under hard acceleration. Due to the higher durometer used in the street