A beautifully crafted CNC billet steel masterpiece! During testing, EGTs were lowered while spooling the turbo faster with higher peak boost and less drive pressure. This manifold is one piece so will never leak and is easy on studs and gaskets. In normal service it shouldn’t need to be retorqued either. Expect long service life and the best fuel economy ever from this manifold.
Now includes M10 x 1.5 Studs and Bolts
Fits round port 3406 models & C15 models under Pete and Kenworth hoods. Can also be used on C15 Acerts Converted to single turbo.
*Direct Replacement for 146-9445, confirm casting number before ordering if concerned about fitment