New Champion QA55V Racing Spark Plug as used in Ducati & Aprilia Superbikes and many other applications.  MORE POWER  3 to 5 HP performance increase over standard plugs.

SURFACE Discharge Gap Spark Plugs are a type of spark plug in which the spark is fired across the insulator surface between the center electrode and the shell; there is no side electrode. Thes plugs are much less likly to cause pre-ignition since there is no electrode protruding into the combustion chamber creating a potential hot spot.

12mm Thread .750" Thread Depth18mm or 11/16" Hex Terminal nut is not removable. Do not try to unscrew it!

These are Champions Racing Version of the following conventional & racing plugs:Champion RA59GC, A55V Denso IXU01-27,  IX27, X27ESRZUNGK DCPR9EVX, DCR8EIX, DCR9EIX, DCPR8EIX, DCPR9EIX,  R2270-9 R2525-10

DucatI OEM Part Numbers 67040201A & 67040092A

Ducati: 748, 748RS,748R,748SPS ,996 , 996 R , 996 SPS , 916 SP,  MONSTER S4, S4R, SPORT ST4, ST4S 888SPO 888 Strada BipostoAprilia: ETV Capo nord, RST Futura, RSV Millie, RSV1000R Tuono, SL1000 Falco Buell: XB9S, XB9R, XB912, XB12S, Ulysses, Firebolt, LightningHarley Davidson: Vrod 1250Laverda: 650, 668, 750, 750S, Sport, Ghost, Ghost Strike, Diamante, Formula MOto Guzzi: MGS-01 Corsa 1225

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