Well I"m glad to see that I"m not the only one having trouble with these things. I called TCI about it and they told me that it could cost me 125 bucks if I sent it back to them. I wonder if thats just for them to look at it, or if they look at it and dont find any thing wrong with it? But at least with my stock one I will get some gas mileage back. But the truck just wont sound as good.

 

mine is having the same problems they will send you a stall whatever rpm or str you want for the 125 they have some kind of warranty i am sending mine back this month it shutters really bad when it locks up.