Reviewed By Tim W (Elkin, NC) Reviewed for a 2007 Volvo S40 —9/23/2008 7:51 AM
The Jet Power-Flow Mass Air Sensor is well built easy to install and does what it says it does. I would say I got at least 15 to 18 more horse power and 1 to 1.5 MPG. I love it. I also have a K&N cold air intake , UNICHIP , and Gibson cat-back.