Cold air intake is better because it's denser.
On intake manifold
The intake air temperature sensor on a 1991 Honda Civic is found on the intake. The intake air temperature reads to climate of the air that is being sucked in through to the engine.
On the intake pipe to the throttle body
On top of the engine block, under the intake manifold
back of engine block under intake manifold
.006" intake, .009" exhaust. Adjusted with engine cold.
regular gas xr is a 4stroke engine
If it is a 4 cylinder engine, it is under the intake manifold and is a pain to change.
According to me Honda aviator is much better then activa.... because aviator has good look,average,pick up,powerful engine,....
Purchase an AEM cool air intake
The air filter on a Honda Odyssey is located next to the air intake. It filters fresh air which comes in from the front of the engine compartment.
The knock sensor for a 3.5 Honda engine is located on top of the motor under the intake. It is about a 1.5 hour job to replace it.