V VelixGV Member Joined Jan 1, 2022 Messages 20 Reaction score 0 Points 1 Nov 4, 2025 #1 Hi everyone, I just purchased a JB4 piggy back tune. Do I need to upgrade anything to run JB4 reliably? I have never installed anything like this, so my apologies if this is a dumb question. Thanks!
Hi everyone, I just purchased a JB4 piggy back tune. Do I need to upgrade anything to run JB4 reliably? I have never installed anything like this, so my apologies if this is a dumb question. Thanks!
R rk88 Member Joined Dec 31, 2019 Messages 91 Reaction score 59 Points 18 Nov 4, 2025 #2 spark plugs gapped to 0.022" as the burger tuning website says. I wouldn't run the jb4 prior to changing them out.
spark plugs gapped to 0.022" as the burger tuning website says. I wouldn't run the jb4 prior to changing them out.
