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Hi all, I have a 2008 6.4 L powerstroke , I have egr ****** CCV mod, volant cold air, 310 ******* tune, no head studs yet and 71mm and 58mm turbos that I just put in and it still ran like crap ( low power, lot of black smoke and high egt). I changed the exhaust back pressure sensor and map...

Hi all, I have a 2008 f250 6.4l manual transmition with 7 in lift and 37x13.50 tires with a *******n tuner running at 250 hp , egr full d******d exhaust and a south bend double clutch. One of my turbos went on my truck and was thinking about going to a single turbo. It's my daily driver and...