Reviewed By Joshua G (SAN DIEGO, CA) Reviewed for a 2015 Chevy Silverado —6/28/2016 11:37 AM
Instant results after the installation of my 63 Series. Noticing roughly a 2 mpg increase and a much better throttle response. Installation was very simple. Set up everything I could inside, went out to my truck and finished the installation, took no more than 45 minutes. By the way, it sounds great paired up with my Magna Flow exhaust!