Reviewed By Ashton G (Asheboro, NC) Reviewed for a 2011 Dodge Challenger —7/30/2013 8:36 PM
My personal opinion on the product is as such. On receiving the package I was a little stunned at the minimal amount of product for the price. I installed it in less than 10 minutes and immediately heard the whistle when I revved it up in my driveway. I took a few test runs and couldn't notice a big difference in performance. My mpg went up from 18 city (driving moderate) to 21mpg so I was fairly impressed and I enjoy the whistle which is very noticeable.