Recently, there have been some requests for an update to our tune for a more aggressive shift, increased throttle response, and even more WOT power over our final revision for Stage 4+ by our customers that want the absolute most out of their cars. Because of these requests, we are combining, and improving upon all of the best attributes from all of our tunes and are releasing our Xv1 tune for those wanting to get every ounce of performance for their SHO. Stay tuned for more updates!
