This is the latest manifold from ZZ fab designed in conjunction with Haisley Machine for maximum performance for the 12 Valve engines. This manifold takes individual cylinder tuning to new levels with bungs (water or nitrous or both) in each runner and a large plenum air "reservoir" this manifold allows for the best balance of any intake manifold on the market. This style manifold allows for front, rear or side air inlet and and our custom tapered runner .
- Additional 125 HP vs a cylinder head with stock plenum!
- Stainless steel construction
- FITS 5.9L or 6.7L CUMMINS utilizing a 12 valve cylinder head.
- GASKET, STUDS & NUTS SOLD SEPARATELY
Haisley Machine part number: ZZ 4321
Plenum was designed in conjunction with Haisley Machine & ZZ Fabrication, also known as ZZ fab.