NGK Racing Spark Plugs for 5.7L Hemi - Heat range 8 Lift Kits User adjustable settings allow for

User adjustable settings allow for a variety of mounting locations and angles suitable for most vehicles

PSN-1 PowerSafe Nitrous Bottle Pressure & Wideband Air/Fuel Ratio Gauge Features*

4L+10% on Challenger equipped with V8-6

Uses factory bolts on outside to maintain OE look and function

NGK Racing Spark Plugs for 5.7L Hemi - Heat range 8 Lift Kits User adjustable settings allow forNGK racing spark plugs are built to withstand the severe mechanical and thermal shock associated with high revving, high compression engines. NGK racing plugs feature special electrode materialsprecious metals like platinum or gold palladiumfor greater durability and low voltage requirements. Fine wire center and ground electrodes provide better sparking and enhanced ignitability. And, the unique arrangement of insulator noses improves throttle