its a good idea just to get rid of all the break in period nastiness, I changed mine at 1k, and have changed it every 3 since then. Just curious, where are you at in Okie?
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2011 Mustang 5.0 | 3.55's | Lethal Performance off road H-Pipe | Magnaflow Muffler Delete | JLT CAI/Bama tuned 417whp/ 404 ft/lbs
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