Billet AluminumKnock Sensor and Harnesses Relocation Brackets for 1997-2007 Gen III LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 Engines. Material : Made of high quality CNC Machined Out Of 6061 Billet Aluminum provides high heat tolerance, corrosion resistant and easy to install.
