Duramax 04.5-05 LLY Nozzle Set 30 Percent Over 75hp Dynomite Diesel Y 0L (Stock-700hp) | Includes NDTSPF14180F140G

0L (Stock-700hp) | Includes NDTSPF14180F140G (180F/140gph/55psi) Fuel System + SK5501 FASS Diesel Fuel Sump Kit

These are designed to be reliable for competition use

less smoke and more MPG

The XD390 Valve Spring Kit is designed to help eliminate valve float due to elevated cylinder pressures and higher boost levels

Maximum gains are achieved from fuel system upgrades

Duramax 04.5-05 LLY Nozzle Set 30 Percent Over 75hp Dynomite Diesel Y 0L (Stock-700hp) | Includes NDTSPF14180F140GDuramax 04. 5 05 LLY Nozzle Set: Upgraded nozzle set flowing at 30 percent over, capable of 675 RWHP with proper supporting modifications. Biggest nozzles recommended for stock CP3 pump or turbo. Not recommended for frequent or heavy towing applications with stock turbo. Sold as a balanced and matched set. IMPORTANT NOTE: All nozzles should be installed and the injectors calibrated by a professional shop that is familiar with calibrating over sized