Reviewed By john m (GLASSBORO, NJ) Reviewed for a 2002 BMW 5-Series —8/20/2014 5:35 AM
Install was very easy took about 20 min.. Gas mileage has improved between 2-2.5 mph..
Reviewed By John W (GRIMES, IA) Reviewed for a 2016 Toyota Tacoma —12/19/2016 10:50 AM
Installation was straight forward and took about 30 minutes. Once installed and driving, I noticed the truck picked up better in the 2000 - 3500 rpm range, the area that I wanted. With the plug in the truck is still quiet until upi get to about 4000 rpm range and goes away after 4500. With the plug out it is quite a bit louder in that same rpm range, where you may not want to step on it that hard. Seems like a good product.