ACCEL U-groove performance spark plugs produce a larger spark for more power at high RPMs. Improves throttle response and fuel economy, less fouling. Purified alumina insulator prevents arcing. Machine rolled threads protect heads. Product Features:Shorty Spark Plugs For Tubular Exhaust HeadersEliminates Dimpling Headers For Added ClearanceShorter Overall Plug Length Vs. OE Style PlugCopper Core Center ElectrodeProjected TipHelps Eliminate Burned Spark Plug BootsShorty Header Spark Plug
