Industrial Injection Performance 6.6L LB7 Duramax Extrude Honed Nozzles. The Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out of new set of nozzles. Each set of nozzles are brought in direct from the OE supplier and then engineered at our facility using extrude hone processes to perfectly balance and match the set. This extensive calibration process is performed to guarantee our customers the smoothest and most reliable nozzles the diesel industry has ever seen. Sold Individually3
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