I went and got my car dyno tuned yesterday at ATS here in SC. My mods are as follows: CNL CAI + Predator Tuner, JBA Longtube headers, Bassani X-pipes with hi-comp cats, and American thunder flowmasters.
Results: Used Mustang Dyno (in 4th gear) Engine Horsepower: 323@6007 RPM/130.7MPH...