Reviewed By Robert K (SAINT LOUIS, MI) Reviewed for a 2017 Dodge Challenger —11/21/2018 10:45 AM
For my 2017 Challenger GT with a 3.6, this item does exactly what it says it does...gained 1 1/2 to 3 mpg depending on how I drive. Added a nice tone that makes it sound more like a muscle car. Seems to have eliminated the little flat spots in acceleration and did increase quickness in the higher RPM ranges. Very happy with this!