1998-2002 Honda Accord 4 Cyl. Cold Air System Installation

The AEM Cold Air System differs from all others in several ways. We take the inlet air from outside of the engine compartment where the inlet air is considerably cooler than the hot under hood air. The cooler inlet air temperature translates to more power during the combustion process because cool air is denser than warm air. AEM has conducted extensive inlet-air temperature studies and we have seen temperature reductions of up to 50 degrees by pulling air from outside of the engine compartment. Because of the increased airflow and reduced inlet temperature, the air-mass flow to the engine increases, this translates to more power.

Our system is constructed of lightweight aluminum and then painted with a zirconia based powder coat for superior heat insulating characteristics. The aluminum will not crack in extended use like plastic and it is actually lighter than plastic. For each engine, we match the tube’s diameter and length to promote power over a broad rpm range. Unlike the plastic systems that use a continually diverging cross section, we take advantage of the acoustical energy in the duct to promote cylinder filling during the intake valve-opening event.

Read and understand these instructions BEFORE attempting to install this product.
1. Make sure vehicle is parked on a level surface.
2. Set parking brake.
3. Disconnect negative battery terminal.
4. If engine has run within the past two hours let it cool down.
5. The following items will be removed from the vehicle.
(a) The OE inlet tube
(b) The air filter case
(c) Intake air noise resonators.
6. Removal of intake air tube.
(a) Disconnect the breather hose from the intake tube. The hose consists of a section of metal tubing between the intake tube and the cam cover.
7. Removal of air filter case.
(a) Remove the two mounting bolts for the air filter case and lift the case out.
8. Preparing the vehicle to accept the Cold Air System.
(a) From underneath the vehicle, remove the engine splash shield and the front left plastic fender liner.
i) The front plastic under-tray can be removed entirely for installation of the Cold Air System and the fender liner can be temporarily folded such that it does not interfere with the installation.
(b) Remove the bolts holding the lower resonator assembly and pull the assembly out from underneath the vehicle.
(c) Remove the two bolts securing the diagonal fender brace that is mounted between the battery and the passenger-side fender.

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1992–1995 Honda Civic Cold Air System Installation Instructions

The AEM Cold Air System is the result of extensive development on a wide variety of cars. Each system is engineered for the particular application. The AEM Cold Air System differs from all others in several ways. We take the inlet air from outside of the engine compartment where the inlet air is considerably cooler than the hot underhood air. The cooler inlet air temperature translates to more power during the combustion process because cool air is denser than warm air. AEM has conducted extensive inlet air temperature studies and we have seen temperature reductions of up to 50 degrees by pulling air from outside of the engine compartment. The air mass flow to the engine is increased because of the increased airflow and reduced inlet temperature, which translates to more power. The AEM Cold Air Systems are 50 states Street Legal (some model and years still pending) and come with complete instructions for ease of installation.

Removing the stock air inlet system
a) Remove the stock air box assembly and attaching hardware from inside the fender well.
b) Disconnect breather hose from the air inlet tube.
c) Disconnect the water bypass hose from throttle body or the fast idle thermo valve, where equipped, located at the lower portion of the throttle body. Disconnect the opposite side of the water bypass hose, which runs to either the intake manifold or the water outlet neck. Remove the entire water bypass hose and breather hose assembly from the vehicle.
d) Loosen and remove the air inlet tube from the throttle body.
e) Jack the front of the vehicle and support using properly rated jack stands.
i) Remove the lower front splashguard.
ii) Remove the front right tire and remove the inside splashguard (inner fender liner).
f) Remove the resonator from underneath the vehicle.

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