false knock

Got a 2015 Mustang with a roush 2.3 blower on in. Tuned by Lund. I’m having a problem with positive knock up to 8 degrees when normal driving and turning the steering wheel in the slightest. The knock hangs and slowly drops down to 0, or I can let off the throttle and it instantly drops. Not...

As the title states, have any of you ever dealt with false knock and ended up resolving it? I'm trying to figure out where to look. I get false knock throughout the RPM range when I go WOT, and it's driving me crazy. I'm aware that the exhaust system is typically the issue, but after looking...