Rigid Collar (Rear) - Mazda RX-7 FD3S recaro Each component is crafted from

Each component is crafted from CNC-machined Hard Anodized Billet Aluminum

and mounting bolts

The Racer X engine pitch mount uses a 60A durometer urethane bushing that reduces engine rotation

exhaust gas regulations and there are many manufacturers

Engine G16E-GTS Model Year 22/12 -  Remarks Confirmed in RZ grade

Rigid Collar (Rear) - Mazda RX-7 FD3S recaro Each component is crafted fromInserts into the subframe mounting holes to fill the 2mm gap around the bolts to provide a tighter fit. Prevents subframe from moving and rattling under load. Reduces wobble of the steering wheels with uneven pavement. Sharpens suspension feel and increases chassis rigidity.