K&N Replacement Air Filter GM CARS & TRUCKS, V8, 1966-84 - E-1650 fits_1972-1978`Mazda`RX-3 SC1-SPR4 kit features a Sport

SC1-SPR4 kit features a Sport pressure plate for a nice upgrade

OEM Fit - Designed for a bolt-on install

straight-through core takes some of the volume out of your exhaust while still letting your engine growl and breathe freely

Installation uses automotive-grade double-sided tape with no drilling required

K&N Replacement Air Filter GM CARS & TRUCKS, V8, 1966-84 - E-1650 fits_1972-1978`Mazda`RX-3 SC1-SPR4 kit features a SportK&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's No Hassle Lifetime Limited Warranty. K&N drop in replacement filters are designed to install easily into your