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4L's have been somewhat plagued with clogged and failed factory oil coolers
5" SST Lift kit is exactly what you need
Sounds like you've got at least one injector in your LLY on its way out
it lets the exhaust gasses expel from the charger more efficiently
Sinister Diesel 50 State Stainless Steel Up-Pipes 03-04 Ford 6.0L Powerstroke PF-R4SBC134 4L's have been somewhat plaguedIs your early 6. 0L Powerstroke riddled with exhaust leaks and poor performance? Chances are your up pipes are cracked and leaking. Sinister Diesel has come up with a solution and it's 50 state legal! Replacing your stock Up Pipes should be your first step in building a durable high performance exhaust system. The up pipe bellows are internally sleeved with stainless steel.
