Performance Cold Air Intake System for 1999–2005 Mazda Miata MX-5 – 1.8L Power & Sound

This performance intake system is engineered to maximize the Miata’s intake velocity. By replacing the restrictive factory air box with a high-velocity induction path, this kit allows the 1.8L non-turbo engine to draw in a larger volume of oxygen-rich air with significantly less effort. The result is a more energetic combustion cycle, providing crisper throttle sensitivity and more fluid acceleration, perfectly complementing the lightweight, nimble handling and naturally aspirated character of the NB chassis.

Made specifically for the 1.8L four-cylinder platform, this upgrade unlocks hidden efficiency while maintaining the iconic balance of your roadster. In addition to the performance boost, it grants your engine a deeper, more aggressive note under load, while the black powder-coated aluminum piping ensures the engine bay looks clean and purpose-built for spirited driving.

Key Features & Performance Benefits

• Unrestricted Induction: Replaces narrow factory ducting with a high-flow pathway to satisfy the engine’s demand for air.

• Instant Throttle Feedback: Eliminates the "laggy" feeling of the stock intake for more immediate power delivery and sharper revs throughout the RPM range.

• Measurable Gains: Precision engineering designed to provide an estimated 10–15 horsepower increase and a 10–15% boost in torque.

• Aggressive Sound Profile: Delivers a more authoritative and sporty engine growl that perfectly suits the Miata’s sports car DNA.

• Superior Filtration: High-flow air filter provides up to 95% filtration efficiency and is washable and reusable for long-term engine protection.

• Premium Construction: Features durable black powder-coated aluminum piping, stainless steel button head bolts, and high-pressure silicone components.

Vehicle Fitment

1999–2005 Mazda Miata MX-5

Engine: 1.8L Non-Turbo

Fits all models equipped with the 1.8L naturally aspirated engine for the NB generation.

Important Notice: Not for sale or street use on licensed vehicles in the State of California. Does not meet CARB requirements. This product is intended for "Off-Road use only."

Product Specifications

• Engine Application: 1.8L I4

• System Type: High-Flow Cold Air Induction

• Tube Construction: Black Powder-Coated Aluminum

• Hardware: Stainless Steel Button Head Bolts

• Installation: Direct bolt-on design utilizing factory mounting points

What's included:

Your kit features a high-flow black aluminum intake pipe, a premium washable performance air filter, high-pressure silicone couplers, and all required heavy-duty hardware to ensure a secure and precise fit.

Installation Tip

Disconnect the NEGATIVE GROUND CABLE from the battery before starting the installation and keep it off for at least one minute after you finish. This reset allows the engine's computer to learn the new airflow parameters. Ensure the engine is completely cool before beginning work.