ok...so im just wondering if anyone has run a fast xfi system on there stang or not?? im curious bout getting one but still dont know...im gonna have a fully built 428 or so and procharged but i dont know if i should stick with a v8 stock computer that can be tuned or if i should go with the fast xfi i have heard that the fast system are hard as hell to tune and confusing idk though. the kit im looking at has everything needed, wiring and sensors and all....just kinda curious what you guys know bout that fast kit and if its worth it..
