I have used the dual bypass with great results with my 7.3. I used 5/8 inside dia hoses and all smooth radiused fittings and great uoa samples for 40000 miles with 5w30 heavy duty diesel. no oil change since 2003 no problems all smiles here. for the 6.0 guys order the bk-203 from amsoil for $50 and buy the billet oil filter cap and oil fill cap with some #4 lines and you can add bypass system to the 6.0
Last edited by sootyoil : 03-05-2007 at 06:45 PM.