Fleece Performance #2 and #7 Injection Line 01-04 6.6L GM Duramax LB7 HS-342004-64 It was designed and engineered

It was designed and engineered to maximize cooling efficiency

You can use the adjustable rod (98-02) on a 94-97 valve

and/or larger valves

Black Oxide coated to resist corrosion and prevents hydrogen embrittlement that can cause cracking

Fleece Performance #2 and #7 Injection Line 01-04 6.6L GM Duramax LB7 HS-342004-64 It was designed and engineeredThe original LB7 Duramax injector lines are notorious for corrosion and breaking that can lead to contamination of your injectors. If you are changing your injectors, have a line failure, or are looking to upgrade your stock lines, weve got you covered with the Fleece Performance direct replacement LB7 injection lines! An upgrade to the factory lines on your 2001 2004 Duramax LB7, the Fleece Performance lines feature machined 4140 injector swivel nuts