gutted cats, You think there were no ECM changes? Roll cage installed adding weight, cleaned up heads and intake aka ported and polished, are you kidding me, on some cars gutting the cats alone can pick you up 2 tenths and porting and polishing heads and intake can net a half second or more depending on the restriction. I'm sure they do not disclose everything they do to the car. A better hooking suspension, a suspension that hooks worse? who knows? Too much was done to the car to try to compare it to a stock SRT8.