525sx popping

Ride in mountains 6500 to around 9000 jetting is not helpin 162 main 45 pilot air screw 21/4 runs fine just hate the popping want my editor back lol

My efi back don't have editor lol

Have you checked for any leaks in your exhaust system? Try some high temp sealant for the pipe connections.

Are u talking about the header and joints ?


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