+3 Continuous Exhaust Manifold Header Flange for 5.9l & 6.7l Cummins Turbo Diesel KB-5.9l6.7lC-CEMF $64.95 In stock Quantity: 1 Add to Bag Product Details 1/2" Thick Steel Exhaust Manifold Flange. 1.75" Port Hole. Great for custom exhaust manifolds! Fits: 1998.5-2019 5.9l & 6.7l Cummins Diesel Engines Save this product for later Favorite