Talking about the downpie, I made my own. I am running an industrial style manifold, which puts the turbo lower on the engine. I bought a flange to fit my turbo online and welded it to my my down pipe. I bought some mandrel bent pipe and cut/welded it to make my downpipe. Where the industrial manifold located the turbo, it makes it a pretty straight shot. I used all 4” pipe.
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2013 Ford F-450 6.7 Auto, 4x4, Crew Cab
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