https://ssnperformance.com/4-e....xhaust-muffler-pipe-
The high-pressure fuel pump was also a good part that had 20% more flow than its rivals at the time and more than its successor in the 6.7 Powerstroke. Though we’ve already established that cracked pistons aren’t specifically a performance roadblock, the fact that it can happen to any 6.4L makes it worth talking about. The crack begins in the fuel bowl, where there is a sharp lip and very little material present underneath. Once the crack starts, it spreads along the center lin
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