Report Tuners Rejoice! Free Tuning For M4.4! in Performance Modifications Posted May 20, 2020 · Edited May 20, 2020 by Serge 16 hours ago, supercowboy said: log it, look at the replay of the data log. Look where you see the knock happen. find the load and rpm part of the map. Drop the timing down a bit. simple. remember to data log and watch the logs. This will tell you what the car is doing. Using TunerPro RT? Also, the M4.4 ECU I am using is from a LPT car, not sure if that makes a difference (I figure it doesn't since the bin is for a T5 car). Not sure why it would do this on a stock setup. Charge hoses and vac lines are all silicone. Plugs are gapped right and fairly new.