More throttle respone
Once the truck ran for a while and went through the whole 'learning mileage,' it seems to have more response when you get into the throttle. The engine noise also got a little louder due to replace the factory tube and it made it sound more like a V8 inside the cab and not a Prius when you get into the throttle.
2004 Toyota 4Runner SR5 V8
Very easy to install, helps allot with my MPG and horse power. installed Airaid Powerair throttle body spacer, K&N 63 Series AirCharger High-Flow Intake Kit and Jet Power-Flow Mass Air Sensor. With all of this now on the truck it makes and amazing growl around 3k rpms and the mileage has gone from 17.7 to 21.5 I am very pleased with all of these products and would recommend them to anyone.