BD Power Exhaust Manifold Kit For 11-17 Ford F-150/Expedition 3.5L Ecoboost 2007-2021 Toyota Tundra after removing the original o-ring

after removing the original o-ring (so it doesn't get stuck in the oil pickup and reduce oil flow)

FlowFX straight-through performance muffler offers a deep powerful sound

Color/Finish: Black Anodized

The MagnaFlow 5" X 8" Oval Straight-Through 12265 is engineered to enhance your ride with a healthy helping of our signature exhaust sound and dyno-proven performance thanks to its free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill

(1) 3800 lb Pressure Plate – Diaphragm Style

BD Power Exhaust Manifold Kit For 11-17 Ford F-150/Expedition 3.5L Ecoboost 2007-2021 Toyota Tundra after removing the original o-ringThe 2011 2016 Ford 3. 5L has an inherent design flaw where not all of the OE stud locations are utilized by the OE manufacturer which leads to warped exhaust manifolds, broken exhaust studs and blown manifold gaskets. The cylinder head on Fords 3. 5L Gas Ecoboost has threaded holes for 11 exhaust studs to be used, however the OE manifold only utilizes 8 of those stud locations. BD has designed a manifold that not only utilizes all 11 stud locations,