Compression Ignition Addict
Join Date: Oct 2012
Location: North Richland Hills, Texas
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S&B with the plexi-lid removed. Tested and proven on the 6.7L by dozens of people on this forum. I've been running one for 40k miles without issue. Adds a nice growl to the interior and a little more turbo hiss.
Everyone got better mpg regardless but an additional 1mpg or so with the plexi-lid removed.
2015 F-250 King Ranch 6.7L CC FX-4
Fabtech 10" 4 Link with Coilovers/American Force Vector 22x12/Toyo MT 40x15.50x22
2011 F-250 King Ranch 6.7L CC 4x4 sold