2007.5-2018 Cummins 6.7L ATS Pulse Flow 2-Piece Exhaust Manifold Kit2007. 5 2018 Cummins 6. 7L ATS Pulse Flow 2 Piece Exhaust Manifold Kit Since ATS released the first Pulse Flow Manifold in 1995, the quest to provide the very best Manifold on the market has never stopped. Nearly 35 years later, ATS is still leading the industry with the best flowing and most reliable manifolds on the market. Featuring a patented bell mouth design and D3 High Silica Molly Cast Iron, the Cummins manifold from ATS lowers EGTs by