I too see a difference when I change my plugs. When it comes to handling heat, iridium is the best among the three, including copper. 3. Better performance and durability compared to stock. When air and fuel start to mix inside of the internal combustion chamber, it needs an electrical spark to ignite. For this reason, platinum spark plugs can last up to 60,000 miles while a copper spark plug lasts up to 20,000 miles. After collecting all the items, I was ready to go. Denso plugs are installed on almost every automobile model manufactured in Japan. The ONLY difference between the two plugs is one will last a little longer but the price is higher. They replace them before each race. Antisieze compound have some sort of powdery/metallic substance I don't think that is any good on an aluminum head. So it's not worth it for them to use Platinum or Iridium plugs. Often specified as original equipment, NGK Laser Iridium spark plugs are the best combination of performance and longevity. However, they’ve been known to go up to 80,000 miles, or even 120,000 miles, depending on the vehicle. NGK Laser Iridium spark plugs provide superior ignitability and long service life. They are Ac Delco branded but look like NGK Laser Iridium, were stamped made in Japan. 75. Iridium IX™ Spark Plug (93501) by NGK®. Toyota Extra Care Protection - Is it worth? Iridium has a melting point of up to 4,471 degrees Fahrenheit, which is almost three times the melting point of copper. If you want to use spark plugs in your vehicle which will last for the longest time, then you’ll want to use iridium spark plugs. It is estimated that iridium spark plugs will last for at least 60,000 miles. This may give your vehicle a more consistent and reliable spark. I cant say whether or not it was the Iridium plugs for sure, or just the fact that I put in new spark plugs, but so far I am really impressed. Find NGK Iridium IX Spark Plugs and get Free Shipping on Orders Over $99 at Summit Racing! King of durability - easily the longest lasting spark plug right now. Automotive $39.75 $ 39. This is often the amount of mileage that most people put on their cars before they get a new one. different; the Laser Series are typically designed to last 80 to100 thousand miles, whereas the Iridium IX spark plugs are designed to last 40 to 50 thousand miles. 95. NGK Laser Iridium spark plugs provide superior ignitability and long service life. NGK Laser Iridium spark plugs provide superior ignitability and long service life. Buy It Now. It only adds up to an extra $3 anyway. Below are the top 3 benefits of iridium spark plugs. We have an extensive range of spark plugs, each with their own unique characteristics specifically engineered to its vehicle application and they are designed to suit a broad range of vehicles on Australian roads. One exception to this is if a new and more advanced part has come to market since your vehicle was built. You will get back lost power with any plug so don't believe all the hype about better plugs make you faster or save you fuel. NGK DIFR5E11 / 91112 Iridium Ignition Spark Plug. They are expected to be cleaned with cleaning machine and not emery paper. NGK Laser Iridium: - OEM style - smallest iridium tip ensuring best durability - Longer life Plug due to the use of Platinum Pad - upwards of 120,000KM life Mazda OEM: aprox. When used as original equipment, Laser Iridium plugs are specfically engineered for an engine platform ensuring correct fit and maximum performance. Got 8 laser indiums, a can of seafoam, and a pack of anti seize for $81. I searched and found that i COULD go with either platinum or iridium spark plugs. Below is the only negative associated with iridium spark plugs. Whenever you have less debris, you have a smooth running ignition system. I went to Advanced Auto yesterday. Laser Iridium ® Spark Plugs provide superior ignitability and long service life. Is the 05 V8 really worth the extra dough/insurance over the 04 V8? Only 3 left in stock - order soon. NGK is the OE choice for most Japanese vehicles. 4.4 out of 5 stars 182. Get it as soon as Thu, Jun 18. The ONLY advantage Platinum or Iridium has over standard copper plugs is longevity. Therefore, NGK gives them a life expectancy of 40-50k miles and Denso assigns a recommended replacement interval of 30k miles. I dont profess to know “why”. Iridium tip is six (6) times harder than platinum providing the strongest ignitability and the longest life possible. If you’re not a fan of the idea of replacing spark plugs every 60,000 miles or so, iridium … $13.92 - $15.75. I just changed my spark plugs and went with the Ac Delco Iridium plugs and have noticed no difference between them and the Ngk copper plugs I was using. Iridium spark plugs have extremely fine electrodes while retaining excellent wear characteristics. Upgrade your Spark Plugs with this set of 4 NGK Laser Iridium Spark Plugs. In Stock. If you want a good quality spark plug at a decent price, the platinum spark plug is priced more affordable than the iridium spark plug. I just replaced the plugs on my V8 a few days ago (for first time for me with 136k miles) and purchased the Denso plugs from Ebay as well for a great price plus free shipping. Put standard back in, and it was fine. NGK manufactures all types of spark plugs and glow plugs featuring the latest in technology. GearWrench 80546 5/8-Inch x 6-Inch Swivel Spark Plug Socket. To help you decide which is right for you, below are the pros and cons of each type of spark plug. Four Hitachi IGC0053 Ignition Coil. NGK's high-grade pure alumina ceramic and 98% pure copper core prevents the spark plug from overheating while providing reliable starts., Package Height--0.827 IN, Description--Laser Iridium Spark Plug, Package Width--0.945 IN, Package Weight--0.097 LBS This means if durability is a quality that you’re looking for the most, then you won’t get it from platinum spark plugs. 1 review. Details. Fine wire iridium tipped center electrode and fine wire platinum tipped ground electrode ensures slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions. Best iridium spark plugs out there. 2. $73.75 $ 73. I think I got a decent deal considering places wanted $13 to ship them. Did You Know? FREE Shipping. This makes it the hardest spark plug on the market. Gap Type: Pre-gapped. NGK Laser Iridium spark plugs provide superior ignitability and long service life. These two plugs perform similarly, due to their fine-wire tip design, but the service interval is different; the Laser Series are typically designed to last 80 to 100 thousand miles, where as the Iridium IX ® spark plugs … I hope you found my E3 Spark Plugs vs. NGK Spark Plugs comparison helpful. They represent the ultimate evolution of spark plug technology and performance. From United States +C $12.38 shipping. Thanks. 13 Causes of a Stiff Clutch Pedal (w/ Simple Fixes), 6 Symptoms of Bad Spark Plugs (and Replacement Cost), 7 Symptoms of a Brake Caliper Sticking (and Common Causes). Iridium will be able to withstand higher combustion chamber temperatures as opposed to resistor and platinum tipped plugs. Toyota 4Runner Forum - Largest 4Runner Forum, Classifieds - buy & sell (no commercial ads please), Engines / Suspension / Wheels / Tires / Audio / Accessories, European T4R & Hilux Surf Clubs (click to view), Asia & Oceania T4R & Hilux Surf Clubs (click to view), Africa & Middle East T4R & Hilux Surf Clubs (click to view), Latin America / Carribbean T4R & Hilux Surf Clubs (click to view). 75. Package Length--3.701 IN, Feature--Iridium tipped center electrode provides durability six times harder than platinum. Starting with a single product in 1936, NGK® became the world leader in innovation, technology, and premium quality in the manufacture of spark plugs for virtually every automotive manufacturer in the world. Some of the best-known IR plugs are NGK,Denso,OWS,HKS,etc. Laser Iridium ® Spark Plugs. Click or tap to zoom. I noticed stronger/smoother pull at higher rpm. You can believe what you want. 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