Originally Posted by TT3 iN NyC
i need to install a DP fix from BMS due to being catless and needing inspection.
I have procede now which im going to sell and get cobb.
Can i leave the DP fix in while running cobb?
You can, but I would recommend against it. It appears that the DPfix can cause some unusual issues with fuel trims. I would recommend only installing for inspections and then remove it and reset the ecu.