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What's firing your engine? NGK 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 materials—precious metals like platinum, iridium, and ruthenium—for 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 response! Whether you're a weekend warrior or an expert racer, rocket your way to victory with racing spark plugs from NGK—the people who spark winners!
( 225 )
$30.99
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$56.99
Denso Iridium Racing spark plugs are elite spark plugs for the serious racer that best demonstrate their performance improvement during acceleration. Their 0.4mm iridium-rhodium alloy center electrodes require less voltage to fire (up to 5,000 V less) and produce the hottest, most concentrated spark. Plus, 100 percent pure platinum 0.8mm ground electrodes reduce the risk of melting during harsh racing conditions. Through superb ignition performance and spark voltage, non-firing and misfires under a variety of conditions are greatly reduced. As a result, combustion conditions are improved dramatically, increasing engine output for the ultimate in power and torque, as well as increased engine efficiency. These spark plugs are a popular choice for street and off-road motorcycles, scooters, ATVs, UTVs, snowmobiles, personal watercraft, and more. Order the model designed for your specific application. Key features and benefits of Denso Iridium Racing spark plugs include: * Almost all Iridium Racing plugs contain a monolithic resistor that blocks noise that may affect electronic devices * Burnished nickel plating on the housing for corrosion resistance; thinner on the threads to reduce head damage * To withstand severe conditions, a patented 360 degree laser welding process secures the iridium tip * Between the center electrode and insulator, a patented spark cleaning pocket burns off carbon, restoring electrical resistance * 20 percent stronger insulator * Silicone coated insulator surface is isolated from moisture and carbon, preventing a decrease in resistance * Ground electrode is welded on and gapped without any bending, reducing residual stress and increasing durability * Enlarged housing end-face chamfer allows slight tuning inaccuracies, improves self-cleaning, and prevents fouling * Durable, reusable packaging protects spark plugs when not in use * Handles extreme compression and boost levels * Maximizes track time, minimizes downtime * Delivers maximum spark energy * Withstands temperatures greater than 4000 degrees F
( 2 )
$23.50
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$42.99
Brisk Silver Racing spark plugs are the best solution for high performance and racing engines. They provide many unique and beneficial characteristics, taking spark plug technology to a whole new level. They're built with a silver fine wire center electrode; tapered ground electrode, and high-dialectic strength insulator. Silver Racing plugs offer a special design for hard-to-ignite fuels. Select the model and options you prefer for your vehicle. Key product benefits include: * Silver is the best electric and heat conductor * Superior ignition ability increases engine power * Lower required supplied ignition voltage * Good resistance to fouling and easier starts Silver Racing spark plugs are ideal for these applications: * Race engines and engines with hard-to-ignite fuels * Supercharged, turbocharged, or nitrous engines * Total loss ignition systems * High mileage vehicles
( 55 )
$34.15
On Sale
After years of racing and street performance research, ACCEL U-Groove spark plugs are proven to deliver the hottest spark and the highest performance for your motorcycle. Due to their patented U-shaped ground electrode, these spark plugs produce a hotter, double-wide spark to ignite standard and high-compression engines. These ACCEL U-Groove spark plugs feature the purest copper/nickel alloy, producing a broad heat range that is highly foul-resistant and dissipates heat well. They also feature a sintered alumina, heavy-duty, 5- rib insulator that eliminates "flashover" and overheating. You'll ride with increased performance and improved throttle response. Gain the ACCEL advantage and give your wheels more power with ACCEL U-Groove spark plugs.
( 2 )
$22.36
$20.12
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$22.36
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