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ZR1 Spark Plugs?
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09-24-2011, 08:00 PM
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ULTRAZLS1
Drives: 14 Silverado LTZ Z71, 16 Camaro SS
Join Date: Nov 2009
Location: Jackson, Michigan
Posts: 4,418
The NGK TR-6 has been a popular choice in the lsx community for years. Most use them on built NA motors and or moderate boost cars.
ULTRAZLS1
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