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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
you can start tuning
*Includes valve cover grommets
Reduces excessive engine wear and horsepower losses while improving gas mileage by preventing oil temperatures from dropping below optimal levels
*MAF-Less Configurations on some vehicles may need the addition of a IAT Sensor and appropriate harness*
excessive fuel) can cause a loss in power
Grommet-Knock Sensor 12558177 K&N fuel filter you can start tuningThese Chevrolet Performance knock sensor grommets are OEM replacement grommets for your GM knock sensors. They hold the bottom of the knock sensor onto the intake valley cover on all Gen III engines, except for the LS7. If you need new knock sensor grommets, make sure that you get Chevrolet Performance OEM replacements to ensure long lasting performance and durability.
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