The rest can be found at...https://www.celicahobby.com/gal3/tech_aem_airbypass
Additional information from AEM
...When to use the AEM Bypass Valve
Bypass Valve is used to protect the engine from hydro locking. Hydro locking occurs when the end of the inlet pipe is submerged in water and the water is sucked into the engine. Driving the vehicle in rainy conditions is not enough to cause a problem unless the vehicle becomes submerged enough that the inlet end of the pipe is immersed in water. Rain impingement on the filter will not cause a hydro lock condition. The distance of the filter from the road dictates the level of water that can cause damage. This distance varies with the vehicle ride height which is why there are no published numbers for this measurement.
Cold Air Intakes
are to be used with the splash shield that is originally installed on the vehicle for protection and performance. The removal of splash shields actually deteriorates performance by allowing hot pavement air in the vicinity of the filter and negates any positive pressure created in the Air Filter
area when the vehicle is in motion.
There are some instances where there is not enough room around the inlet pipe for adequate clearance of the Bypass Valve. In these cases a Short Ram
system is offered or will be offered in the near future..Will the AEM Bypass Valve cause a loss of power?
The bypass valve may cause a slight loss in power due to the interrupted wall section created by the internal shape of the valve. In dyno testing we have found that the power loss is minimal. The bypass valve offers great security against hydro locking the engine in rainy conditions. If maximum power is the requirement, we suggest that the bypass valve be used in the rainy season and when racing use a coupler hose to make a smooth section where the bypass valve goes.