TestimonialsThis is my second car that Trifecta performance has tuned, my ATS-V absolutely screams and is running the 1/4 in the 11s, this tune doesn't add the raw horsepower as their V tun…I purchased the tune on Black Friday but had to wait about 2 weeks for my cable to arrive due to weather related issues with the Post Office. I have been busy so I was not in a…AMAZING!!! Best $400 I have ever spent. I just installed the tune so I have only been able to drive it about half a mile, but nuff' said. It took me seconds to notice the differenc…Best bang for your buck!