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Installation Kit #RJS90906 available (sold separately)
Indexing positions the ground strap of the spark plug properly for best piston dome clearance and un-shrouds the electrode for a more even burn and possible gains of 5-15 horsepower
4 x 6 Aluminum Fill Plate Assembly With (2) #8
2020 GMC Yukon XL
7-1/2 in to 8-3/4 in Length
AutoMeter Ultra-Lite Electric Pyrometer Gauge - 2-1/16 in. 2010174 Installation Kit #RJS90906 available (soldWatching your precise exhaust temperature can mean the difference between maximum performance and catastrophic engine damage. On high output diesel or forced induction applications, there are few gauges that are more critical. AutoMeter's Digital Stepper Motor display makes viewing your exact exhaust temperature effortless. The included Type K thermocouple assures maximum accuracy and minimum response time. There is, quite simply, not a better
