https://ssnperformance.com/4-e....xhaust-muffler-pipe-
Without question, things get expensive quickly once you move to larger injectors in a 6.4L. Dual injection pumps become necessary and a higher-flowing low-pressure fuel supply system is mandatory—not to mention you’ll be subjecting the factory pistons to even more abuse. Remember, until they’re addressed, the stock pistons are a perpetual wildcard. The EGR system in the 6.4L Powerstroke engine often gets clogged with soot, leading to increased engine temperatures and reduced po
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