Banks cold air intake

The engine manufacturers do not make an engine just for RV use. Most of the engines produced can be used for generators, trucks, RV's, or many other industrial uses. The engine is tuned to what they think will be the best average use. When the engine electronic control module is reprogrammed to change the GENERIC parameters to a more specific use, such as towing or high altitude use, it will produce more HP but it is not going to put out any more horse power than it is already designed to produce.