Reading spark plugs is a must when properly tuning a nitrous system. In order to do this you need the proper tools. The Nitrous Outlet spark plug reader will give you the ability to properly read the spark plug for air fuel, timing, plug temperature, and detonation. Designed to magnify and illuminate the hard to read area in the base of the spark plug. The reader requires two "AA" batteries (not included).
Features:
- Accurately Read Plugs
- Uses Two "AA" Batteries (Not Included)
- Comes with 8 Specula
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