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aFe Silver Bullet Throttle Body Spacers TBS Mazda Miata ND 16-19 L4-2.0L aFe AFE46-30001
aFe Silver Bullet Throttle Body Spacers TBS Mazda Miata ND 16-19 L4-2.0L aFe AFE46-30001
aFe Silver Bullet Throttle Body Spacers TBS Mazda Miata ND 16-19 L4-2.0L aFe AFE46-30001
aFe Silver Bullet Throttle Body Spacers TBS Mazda Miata ND 16-19 L4-2.0L aFe AFE46-30001
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aFe Mazda MX-5 Miata ND 2.0L Black Silver Bullet Spacer

aFe
AFE46-30001
802959467145
Throttle Body Spacers
5 Units In Stock
$ 173.75 $ 139.00
$ 139.00

Silver Bullet spacer for exact engine and intake requirements

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.

Key Features

  • 6061-T6 billet-aluminum serrated/helix entry design; claimed turbulence and reduced whistle do not guarantee an improvement on every setup.
  • For 2016–2018, use four 70 mm screws. For 2019+, use one 70 mm screw in the exact manual’s marked upper-right location and the three 50 mm screws in the other holes.
  • The supplied gasket goes between spacer and throttle body. AIR IN faces the throttle body and TOP faces outward/up.
  • Slide lock washers on first, then flat washers against the throttle body. Exact manual tightening is 7.5 ft-lb.
  • The current page specifically names compatible aFe intakes 56-70006R/D and 56-20040R/D. That is not approval of every unrelated intake.
  • Manufacturer gains up to 3 hp and 5 lb-ft are test claims, not guaranteed results on every trim, intake or engine setup.

Fitment

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.

Specifications

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.

What's Included

  • One Silver Bullet spacer and one gasket.
  • Four M6 x 70 mm hex-cap screws and three M6 x 50 mm hex-cap screws as alternative installation sets.
  • Four flat washers and four lock washers. Only four screws are installed at once; no filter, coupling or complete intake is listed.

About aFe Power

aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.

Related Parts

Frequently Asked Questions

What is the 46-30001?

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.

Installation Instructions

  1. Read the exact manufacturer instructions for 46-30001, verify the actual engine, intake, hardware and applicable emissions scope before removal.
  2. Verify the exact ND 2.0L vehicle and required screw arrangement before removal. Read the exact illustration, especially the circled long-screw location for 2019 and later.
  3. Release the vacuum connection and intake clamps, remove the sound-tube retaining screw and move the intake assembly aside. Remove the four original throttle-body bolts.
  4. Position spacer and gasket with the gasket at the throttle-body side, AIR IN toward the body and TOP outward/up.
  5. For 2016–2018, use four supplied 70 mm screws. For 2019+, put one 70 mm screw in the illustrated upper-right position and the three 50 mm screws in the other holes. Use lock washers first and flat washers against the body, tightening to 7.5 ft-lb.
  6. Restore the intake, clamps, sound-tube screw and vacuum hose. Verify all connections and recheck bolts/clamps after 100 miles.

46-30001: installation details and any unresolved source scope must be matched to the actual vehicle before use.

California Proposition 65 Warning

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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