BD Diesel 20-Degree T4 Exhaust Manifold

8.5 - 18 5.9L/6.7L Dodge Cummins

SKU NWD-1045995-T4


Intended for installation with competition turbos


  • Gaskets are available separately
  • Larger runner size helps enhance flow through the manifolds
  • No restriction throughout rpm
  • Cast ports and runners match inlet gasket within 0.03"
  • Center Mount can face down or up
  • Optimum 20 degree flange helps mounting S400, S500 other larger turbochargers
  • Heavy cast HiSi Ductile Iron retains heat energy
  • High temperature black coated
  • Drilled and tapped 1/8-NPT ports
  • Thick walls allows for drilling/tapping of individual cylinder pyro ports
  • Heat expansion joints prevents cracking
  • Intended for installation with competition turbos
  • Some modifications to vehicle/engine components will be necessary

NOTE: Not for sale on licensed California vehicles



  • 36-Months
  • 75,000 Miles
Year Make Engine



5.9L/6.7L Cummins