Stainless Steel HIGH FLOW Exhaust Manifold for CAT C15 C16 3406E 14.6L 15.8L

Stainless steel high-flow exhaust manifold delivers measurable performance gains for Caterpillar E-series engines. This precision-engineered component replaces OEM manifolds (146-9445, 100-5693) and fits 3406E and C-15/C-16 applications in Peterbilt and Kenworth trucks. Experience improved fuel economy of 0.2-0.3 mpg, reduced exhaust gas temperatures by 80-100°F, and manifold surface temperatures 300°F lower than stock. The design minimizes turbo lag while eliminating common failure points—no cracking, leaking, or warping. Enhanced gasket longevity and backed by a 1-year warranty, this upgrade combines durability with tangible efficiency improvements for serious diesel operators.