V-Power Plug, 14mm Thread Size, 17.55mm (.691") Reach, 5/8" (16mm) Hex Size, Tapered Seat, Resistor, Solid Terminal Nut, V-Power (V-Grooved Center Electrode), .028" (0.7mm) Gap, Heat Range 7
NGK's unique V-Power design directs the spark to the edge of the electrode where it develops more rapidly, this increases ignitability even in lean burn conditions. In addition the NGK V-Power plug has all the features of their traditional plugs including corrugated ribs, pure alumina silicate ceramic insulator for greater strength and better heat transfer, copper core and triple interior seal.
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Reviews
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My 2014 GT500 loves these plugs
I installed a set of these plugs after having some spark blowout problems with another plug, and the car runs flawlessly with the BR7EF plugs in it. It even appears to idle more smoothly.
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2013 shelby
I converted my 2013 shelby to e85. John lund tuned the car at the time of tunning the stock plugs were still in the car,ran ok some popping thru the exhaust on decell. John suggested that I change to NGK TR6 plugs gapped at .028.Ibought the plugs locally and installed started car ran poorly pulled plugs regapped to.032 but car operated better but stil not right.I researched what evryone suggested for plugs for a vehicle with over 700 rear wheel horse power. The plug suggested wwas the BR7EF purchased from Revan racing got in a couple of days. The plugs are gapped at .028 do not have to regap. Installed started car ran perfect no hessitation no popping.