Q: This is in regard to the Nov. '01 and Feb. '02 "4xForum" topic Restricted Sixes. The reader asked about a restrictor cone in the air intake tube of 4.0 inline-sixes found in many Jeeps. I was ...

Intakes are vital automobile components that work to bring oxygen – a key ingredient in an internal combustion reaction – into the engine’s combustion chamber to modulate how much oxygen mixes with ...