So I recently got my nameless turboback installed and went cobb stage 2 on my 17 sti I been monitoring feedback knock, fine knock and DAM as well and while fine knock is minimal I been seeing feedback knock occasionally go to -1.4 and my DAM has been at .562 I only have been running this tune for a couple days and have been told it could correct itself and it might just be the gas I used (91 oct) has anyone ran into this issue or have suggestions to correct it/ am I worried about nothing