Injen Intake Honda Civic MK4 1988-91
 
RD series (Race division)
 
Is a cold air intake system for the enthusiast craving mid-range power. The intake tube is strategically placed behind the front bumper to acquire colder, denser air. Although most of the RD series is a one-piece design, several are two-piece designs due to the mass air flow meters.
 
* All mounting hardware and detailed instruction manual included for easy installation
Honda Civic MK4