GEAR HEADS HELP! Rapid exhaust popping @ WOT high rpm - Mustang Evolution

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Old 02-20-2012, 07:10 AM   #1
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GEAR HEADS HELP! Rapid exhaust popping @ WOT high rpm

I could use some help guys. My cobra starts to rapidly pop when I step on it hard at high rpm, anything from 5000 and up.

It has no loss of power, matter of fact it pulls like a beast. Other than the popping it runs and idles smooth. I'm not hearing or feeling any misfires.

Any ideas of what this could be? I was thinking maybe an ignition component like plugs or coil packs. Maybe the spark gap is too big and the car is running lean. I get no codes. I am running msd coil packs and I also have an off road xpipe which I thought may have been a contributing factor as well. Your input would be greatly appreciated on this one thanks.
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Old 02-22-2012, 03:06 PM   #2
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Seems to be a tune related issue, i got it. Thanks for the replies. These forums are whack. Peace
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