The Injen IS1670P is a polished short ram intake for the 1998-2002 Honda Accord 2.3L four-cylinder. Injen's IS design sits in the factory air box location, so it is an underhood setup rather than a remote-mounted cold air system. Owners on user forums say a short ram is a simpler, lower-cost way to upgrade a four-cylinder Accord than a full cold air intake. Owners also say cold air systems can pull slightly cooler air but add routing and a water-ingestion concern. Owners on user forums describe a noticeable intake tone at higher RPM, which many enthusiasts treat as part of the appeal. Search terms: 98-02 Accord 2.3 short ram, 4 cylinder Accord cold air alternative, Honda Accord L4 intake upgrade.
Installation is a straightforward bolt-on job for a home mechanic. Owners on user forums report removing the air box lid with 10mm fasteners, loosening the clamp at the throttle body, and disconnecting the hoses before lifting out the stock intake. Many owners finish in under an hour, though a strut tower bar can add time. Have your radio security code ready before you disconnect the battery, because some owners reset the ECU that way after installation.
Owners on user forums generally say a cold air intake pulls cooler air, while a short ram avoids the water-ingestion concern and is usually the cheaper route. Forum opinions on the real-world difference vary, so compare your driving conditions before choosing.
Owners on user forums report disconnecting the negative battery terminal, pressing the brake pedal to drain residual power, and reconnecting the battery. Confirm your radio code first, since the reset can clear it.
This is a beginner-friendly install. You will need a 10mm socket and basic hand tools. Start by removing the air box lid, then loosen the clamp at the throttle body and disconnect the hoses before pulling out the stock intake. Owners recommend checking the radio code before disconnecting the battery. Allow extra time if you have a strut tower bar, because it can limit access to the stock hardware.
