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Recommend timing set at 23-28 degrees
Better Oil Retention: Keeps vital engine components properly lubricated for reduced friction and heat
7L Powerstroke's turbo were known to fail
Passages are bigger than the standard manifolds with revised passage route to give more flow potential and lower EGTs
Unlike factory head bolts that stretch under high pressure
2011-2016 Powerstroke 6.7L P1 4" Downpipe Back Exhaust w/ Muffler (C6262304) 2003 - 2007 Ford Transmissions & Drivetrains Recommend timing set at 23-282011 2016 Powerstroke 6. 7L P1 4" Downpipe Back Exhaust w Muffler (C6262304) Maximize performance in your race built 2011 2016 Ford 6. 7L Powerstroke with the P1 Performance Products C6262304 4" Pro Series Downpipe Back Competition Exhaust. The Pro Series is built from T304 stainless steel that offers unbeatable durability. The P1 Performance Products Pro Series is built for those that don't want to compromise on their exhaust system.