K&N 57-0047 57i Series Performance Intake Kit for 1990-1993 Mazda Miata 1.6L

Vehicle Fitment

• 1990-1993 Mazda Miata (NA, 1.6L L4 B6ZE)

Fitment Notes

• 1.6L only -- does not fit 1994+ US-market Miata (1.8L BP engine)
• Also fits 1994-1998 Mazda MX-5 I with 1.6L engine (non-US markets only)
• Not legal for sale or use in California or states adopting CA emissions standards
• No tune required -- direct replacement for factory airbox

Features

• K&N 57i Series induction kit
• Larger filter surface area than factory airbox allows
• K&N oiled cotton gauze High-Flow air filter -- red
• Black flex hose and intake pipe assembly
• Increased airflow throughout RPM range
• Filter serviceable up to 100,000 miles
• All adapters in high-quality steel, aluminum, silicone, or reinforced nylon
• Will not void factory vehicle warranty
• No-Hassle Lifetime Limited Warranty

Specifications

• Series: K&N 57i Performance Induction Kit
• Filter type: K&N oiled cotton gauze, conical
• Filter color: Red
• Filter height: 5.5" (140mm)
• Filter large end diameter: 5.031" (128mm)
• Filter outlet length: 2.75" (70mm)
• Weight: 2.4 lbs

Included Components

• 1x K&N oiled cotton gauze air filter
• 1x Black flex hose and intake pipe assembly
• 1x Complete hardware kit

Product Description

The K&N 57-0047 is a 57i Series Performance Induction Kit designed specifically for the 1990-1993 Mazda Miata NA with the 1.6L B6ZE engine. The factory airbox on these Miatas restricts the volume of air available to the engine by limiting filter size to the available housing. The K&N 57i system eliminates this restriction by replacing the airbox entirely with a larger conical oiled cotton gauze filter that has significantly more surface area, allowing a greater volume of cooler, denser air to reach the engine throughout the RPM range.

The kit uses a black flex hose and intake pipe assembly to route air from the filter to the throttle body, with all adapters constructed from high-quality steel, aluminum, silicone, or reinforced nylon for long-term durability. The K&N High-Flow filter requires no replacement -- only periodic cleaning, typically up to 100,000 miles between services. Not legal for sale or use in California or states adopting California emissions standards. Does not fit 1994+ US-market Miata, which uses the 1.8L engine. Backed by K&N's No-Hassle Lifetime Limited Warranty.