TestimonialsPre sale service = excellent. The guys answered all my questions (30+) like Rock Stars. Post sale service = excellent. The guys kept answering all my additional questions a…I've had my Trifecta tune in my 2014 CTS V-Sport for nearly a year. The original tune for about 9 months and a stock Touring version since. I've driving mostly in Houston miles but…We added the Trifecta Performance tuner in mid October to our 2018 Colorado ZR2 with 37,000 miles on it. The difference is amazing! Immediate throttle response and you can defini…Best money I ever spent, the car feels like this is the way it should've came from the factory!