Rigid Collar (Front) - Mazda RX-7 FD3S fg2 J’s Racing developed big bore

J’s Racing developed big bore throttle Body which outer diameter is 70mm and inner diameter is 64mm

JQR Certified

Light weight in construction and the excellent in finish and fit

This kit replaces all intercooler pipes (including the BPV pipe) with weld-free single-pipe aluminum tubing

Rigid Collar (Front) - Mazda RX-7 FD3S fg2 J’s Racing developed big boreInserts 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.