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Hey everyone, just looking to get some ideas of what this clunk may be. Its only in 4A,4H and assuming 4L (never actually tried it). Its a pretty aggressive clunk I feel it on the driver side and feel like its behind me but can't really tell 100%. It was started when I was off roading in some...

https://5startuning.com/product/ford-f150-ecoboost-raptor-jb4-tuner/ Is anyone familiar with this system? I've always used the reflashing method for tuning. This one claims 100hp and 120tq at the wheels. Sounds impressive but know nothing about it.