need help clattering like and older 24 or 12 valve

[carte]

I have a 2003 dodge and i have the rkl tunes on my predator and i have been running one of the tunes and my truck has had no issues. Now i have installed a puck without using the puck stack tune. Then Brought it back to the dealer i bought the predator from and he put a different rkl tune and now i have a very loud clatter like and older dodge. Its REALLY noticeable when its could and hasn't warmed up yet. once it reaches around 160-180 its drasically reduces but still has a clatter louder than the truck has ever before. Is this going to damage my truck, and what do i do about it. i have had three diffrent replys. please help. thanks

[5point9]

My does the same with rkl tunes. I'm going to take a stab in the dark and say that the rkl tunes are hot, timing and fueling is agressive. How else is it going to make 150+hp on our 03's? I think it's normal.

[mikel]

I'd go back to the same tune you ran before that was good, or try some of the other custom tunes available here.

[ChrisMyers1]

My does the same with rkl tunes. I'm going to take a stab in the dark and say that the rkl tunes are hot, timing and fueling is agressive. How else is it going to make 150+hp on our 03's? I think it's normal.

You are correct... the timing rattle will get loud after a certain point... just make sure you watch your EGT's and rail pressure... drop to low youll start rail pop and burn up your cp3...