I prefer the abuse break in method. This guy says i'll make more power in the long run.. I think this has been posted before. I think the whole under 4k for 1k is BS.
Break In Secrets--How To Break In New Motorcycle and Car Engines For More Power
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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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