boost fooler?
You wont get an overboost code, thats the purpose of a boost fooler, or at least my elite diesel boost fooler. On a totally stock truck i think it may help a little, not to positive. With any programer, box it will help some. Although im not sure if your asking about a CR or 24v?
Yes, the boost fooler will help a stock CR 600. You will get a better mid and top end air flow and get the EGT's down. My 05 with stock fueling will make 40 psi and keep the EGT's generally under 1300 on hard pulls.



