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The aFe 46-30001 is a black-anodized serrated/helix-entry 6061-T6 aluminum spacer for the listed MX-5 Miata ND 2.0L applications. The kit supplies two alternative screw lengths: all four 70 mm screws for 2016–2018, or one 70 mm plus three 50 mm screws for 2019 onward.
| Years / source scope | Model | Exact requirements |
|---|---|---|
| 2016–2026 current manufacturer headline | Mazda MX-5 Miata ND 2.0L | Current exact retailer table names Sport, Club and Grand Touring |
| 2017–2026 current exact retailer | RF Club / RF Grand Touring | ND 2.0L; actual RF installation and later screw arrangement must match |
| 2020 /2025 exact retailer; OEM edition identity corroborated | 100th Anniversary / RF 100th Anniversary;35th Anniversary | 2.0L ND only; no earlier-generation Miata engine inferred |
46-30001: The exact linked manual’s header ends 2024 while the current manufacturer page extends the ND 2.0L family through 2026. The current ML Performance North America table supplies the named-trim detail, including RF Grand Touring 2017–2026 and 35th Anniversary 2025. The four carried regular/RF Club ranges are extended only to that exact supported 2026 endpoint; two missing trim groups are restored. The100th Anniversary 2020 rows are retained and corroborated by Mazda USA’s own history. This is retailer named-trim detail with manufacturer family support, not a manufacturer-explicit full trim table.
| Detail | Value |
|---|---|
| Manufacturer Part Number | 46-30001 |
| Material / design | 6061-T6 billet aluminum; serrated/helix entry |
| Engine / application | See exact engine-specific fitment table and source qualifications |
| Sealing arrangement | One supplied gasket between spacer and throttle body; AIR IN toward body and TOP outward/up. |
| Throttle-body fastening | Exact manual:7.5 ft-lb; year-specific four-screw arrangement required. |
| Emissions scope | The current exact manufacturer page states not CARB exempt and unavailable for purchase in California or use on a vehicle registered with California DMV. No exemption from another spacer applies. |
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
A model- and engine-specific Silver Bullet throttle-body spacer, not a complete intake or replacement throttle body.
Does it include a filter or coupling?The exact parts list below governs. Generic manufacturer page fields do not establish a supplied intake filter or coupling for this spacer.
Are gains guaranteed?No. Turbulence, throttle-response and whistle statements are manufacturer design claims, not guaranteed horsepower, fuel-economy or sound results for the actual engine.
Which sealing parts are used?One supplied gasket between spacer and throttle body; AIR IN toward body and TOP outward/up.
What is the correct torque?Exact manual:7.5 ft-lb; year-specific four-screw arrangement required.
Are all original search rows certified?The exact linked manual’s header ends 2024 while the current manufacturer page extends the ND 2.0L family through 2026. The current ML Performance North America table supplies the named-trim detail, including RF Grand Touring 2017–2026 and 35th Anniversary 2025. The four carried regular/RF Club ranges are extended only to that exact supported 2026 endpoint; two missing trim groups are restored. The100th Anniversary 2020 rows are retained and corroborated by Mazda USA’s own history. This is retailer named-trim detail with manufacturer family support, not a manufacturer-explicit full trim table.
Can another spacer’s instructions be substituted?No. Gaskets, O-rings, brackets, screw sizes, control cables and intake restrictions differ by exact part number.
Does the EO reference cover every application?The current exact manufacturer page states not CARB exempt and unavailable for purchase in California or use on a vehicle registered with California DMV. No exemption from another spacer applies.
46-30001: installation details and any unresolved source scope must be matched to the actual vehicle before use.
California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
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