Dynomite NOZ-DLBZ-20 Nozzle Set 20 Percent Over | 06-07 GM 6.6L Duramax 2500HD / 3500HD

Duramax 06-07 LBZ Nozzle Set: 20 percent over, approximately 50 RWHP over stock. Nozzles can support up to 625-650 RWHP with proper supporting modifications. Safe on stock trucks. Excellent street manners and MPG.