I really do try and do my research before asking or posting, and it looks like both Seafoam and MMO are both highly not-recommended on these forums for the 5.4
so I did more research and found these videos from someone who did incredible research and tests on both and the results blew me away...
While on the subject, can someone post an Amazon link to a set of replacement fuses that worked for them for a 2003 Expedition 5.4 2v ?
I see a lot of mixed reviews on Amazon for replacement fuses.
I’m considered a full cat back exhaust
however, quietest and tame as possible with zero drone.
Basically something just a step above stock. I don’t need or want to shake the block, something that’s somewhat noticeable and has no highway drone.
Any recommendations ? I read through some forums...
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