IT was me but I am not the only one... I can not remember where I posted about it...HDDP knows a lot more about both engines then I do but my general knowledge was I built the intake, put it on two days later tripped a code. Went into the dealer had the code run and reset. On the way home tripped again... Went back to the dealer said it was still running rich.. Took the intake off never tripped another code. I did not beat on it while I had the intake on either so running it hard and turning it off was out of the question which is what they accused me of.