aFe Silver Bullet Throttle Body Spacer (46-30001) boosts airflow, power, and throttle response for 2016–2019 Mazda MX-5 Miata 2.0L applications. Made from precision-machined T-6061 billet aluminum, this spacer uses a combination serrated and helix design to generate air turbulence just before intake manifold entry. This turbulence promotes more complete fuel combustion, improving volumetric efficiency without the high-pitched whistle common to other designs. The result is enhanced horsepower, torque, and fuel efficiency in a lightweight, bolt-on upgrade.
Key Features :
Fits 2016–2019 Mazda MX-5 Miata with 2.0L L4 engine
Precision-machined from T-6061 billet aluminum for durability
Serrated/helix design increases intake turbulence and air/fuel mixing
Enhances throttle response and mid-range power
Reduces whistling noise found in typical helix-only spacers
Increases volumetric efficiency by expanding intake volume
Simple bolt-on installation with no tuning required
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