Yeah, they can't drive the SRT-4. Plain and simple.
04 SRT-4:
Performance
0-60 mph: 5.3 sec
0-100 mph: 13.4 sec
Quarter Mile: 13.9 sec @ 103 mph
Motortrend = newb shifters.
Edit:
Apparently they can drive a cobalt SS fairly well though.
0-60 mph: 6.1 sec
0-100 mph: 16.0 sec
Quarter mile: 14.7 sec @ 97 mph