1999-2015 Duramax Calibration Resistor #3 (AP63555)OEM Part Number: 39861

Any increases in combustion pressure can lead to problems like blown head gaskets or catastrophic engine failure

Rocker style switch

upgraded turbo(s) required

Optimized for Large Lobe Lift: reduced mass for precise valve control with aggressive cam profiles

5-02 24v Injector Set: Injector set capable of supplying enough fuel for 550 RWHP with proper supporting modifications

2006-2007 Duramax LBZ Dynomite Diesel Brand New Injector 60% Over (DDPNLBZ-150)

Reduced EGTs at increased power output

3L 4" Turbo Back Exhaust No Muffler (421116)

3L Ambient Air Temp Sensor (AP63490)

So what size is the new KC 300x Gen 3 Stage 1

2011 - 2019 | 6

2001 - 2004 GM Injection Line AP63722