i have a 2004 srt-4 and i am ordering a stage 3 turbo kit this week and i need to know what can the stock rods and internals handle?cause i need to know if i have to upgrade those too?im planning to order the atp stage 3 kit

pistons 450 with good tune. everything else is 600+ capable. though if your going to road race, you are going to want to swap out rods as well

Stock internal will take 450-500WHP.

Stock block & crank will take 800-1000WHP

The SRT and PT Cruizer turbo engines are so overbuilt from the factory, that unless you plan on exceeding 450-500hp I wouldn't worry about it.