Mazda RX7 FC3S-to-FD3S Intake Adapter

Mazda RX7 FC3S-to-FD3S Intake Adapter

$380.00
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Designed to adapt the S4/S5 Lower intake plenum to the FD Upper Intake Plenum.  Material: 6061 Aluminum CNC Machined in house This adapter allows you to run the far more efficient FD upper intake plenum that the s4 and s5 engines lack The adapter adds 40mm intake runner length to help off boost low and mid range power Port matched to the OEM S4/S5 ports and OEM FD ports  Hardware shown is included: 4x M8x1.25x35 studs, 2x M8x1.25x16mm flange bolt, 1x M8x1.25x120 bolt, 4x M8x1.25 nuts, 5x M8 flat washer, 5x M8 wave washer  Color: Raw 6061 machined aluminum finish to allow port matching if necessary

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