My truck is an 04 SRT-10 Ram. They made a little over 3,000 of them in 3 years. The engine is the 8.3L V-10 thats rated at 505hp and 525tq stock. I have put Bassani headers, JMB catless mids, Magnaflow cat-back, and JMB intake on it for performance and it woke it up quite a bit but it needs tuned cause it runs really rich.