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Review on K&N Cold Air Intake Kit for 1990-1993 MAZDA Miata: Boost Horsepower with High Performance 57-5001 Kit - 50-State Legal by Ben Chase

Revainrating 5 out of 5

K&N FIPK for Mazda Miata

I really like my new K&N FIPK. While not a true cold air intake, it makes a noticeable difference, just like one. The installation instructions could have been better, but overall it's not too difficult. While this doesn't give you a huge performance boost overall, it does offer good value for money. Other pluses include improved gas mileage (about 1 mpg), improved engine sound and longer service intervals.

Pros
  • GUARANTEED INCREASED PERFORMANCE: Dynamometer tested with 50% more airflow than factory air filter and intake manifold.
Cons
  • Frequency