NGKLKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix), 4 Pack

The NGK LKAR7BIX-11S Iridium IX Spark Plugs are a perfect fit for my 2015 Lexus CT200h. These spark plugs provide outstanding performance and durability, making them an excellent choice for anyone in need of reliable ignition power for their vehicle.One notable feature of these spark plugs is their slightly slimmer design compared to regular spark plugs. This difference necessitates the use of a specific spark plug socket to ensure a proper and secure installation. It's important to have the correct tools on hand, but once you do, the installation process is straightforward and hassle-free.In terms of quality, the NGK LKAR7BIX-11S spark plugs exceed expectations. The Iridium IX construction ensures excellent ignition efficiency and longevity, allowing for consistent and reliable spark generation. This directly translates to improved engine performance and fuel efficiency. I have noticed smoother acceleration and enhanced overall engine responsiveness since installing these spark plugs.Additionally, I would like to commend the fast shipping provided by Amazon. It's always a delight to receive products promptly, especially when it comes to essential vehicle components. The combination of high-quality spark plugs and efficient delivery further emphasizes the convenience and satisfaction of choosing NGK LKAR7BIX-11S Iridium IX Spark Plugs for my Lexus CT200h.In conclusion, the NGK LKAR7BIX-11S Iridium IX Spark Plugs are a perfect fit for the 2015 Lexus CT200h. While their slightly slimmer design may require a specific spark plug socket for installation, the quality and performance they deliver are exceptional. With improved ignition power and enhanced engine performance, these spark plugs are a reliable choice. Combined with the fast shipping from Amazon, my experience with these spark plugs has been nothing short of impressive.

Read all of this please:I give them 5 stars because of cost and performance. They were much more expensive in my local big name auto parts store (50% more). My 2015 Honda Fit had 72,000 miles on it. Honda says replace the plugs at 103,000 miles or seven years, which ever came first. I had original plugs in it and exceeded the seven year mark, but was 30,000 short of the mileage mark. I noticed my idle was just not quite as smooth as it could be. I replaced the original plugs with these and WOW! there was a very noticeable difference.WHAT YOU SHOULD KNOW: For my Fit these are the "correct" plugs per NGK. However, and this is the big one: they are NOT the OEM original plugs Honda installs. These are the "IX" version not the Laser version. The difference is in the side electrode design. The Laser model (which has a slightly different number) has a longer lasting side electrode and are rated for over 100,000 miles. This model does not have that better side electrode and is rated for (depending on source) 30,000 to 50,000 miles. From experience I would say under normal driving 40k to 50k is a reasonable expectation.Our Fit is a run around town car and only goes about 6,000 miles a year, or even less. This version of the plug will last us like seven more years, likely longer than we will keep the car. This version was just shy of $30 for a set of four compared to OEM plugs which would be something like $100 to over $160 (at a Honda dealer).They work super well. The difference in performance was immediately noticed, the car runs really great. The gas mileage seems maybe slightly better, too soon to tell. I could not be happier with them and their price.Note, the one's I got were made in Japan. They do take a 14mm spark plug socket if you don't have one there are lots of choices here on Amazon. I got the one with a flexible drive end but no built in extension. ( I have plenty of those in different lengths so I could use exactly the one that worked best).I would recommend these to anyone as long as they understand just what they are buying and how long they will last compared to the OEM part number.

Engine fired up and was very smooth after the spark plug change. Found different gap specs after an online search. I didn't find the spark plug stock # or gap specs in the owner's manual. I read conflict information whether or not to gap the plugs, some sources said not to gap due to possible damaging the iridium coating. Other sources said to always check the gap, which I did. Habit from years of doing tune ups.I found that the gaps were not consistent, which surprised me. Some were as narrow, ~ .030". It should be closer to ~ .044"Plugs were delivered the following day. Buying them from Amazon was cheaper than any of any local auto parts store so fast delivery and good pricing!

It fit my 2013 skyactiv Mazda 3. It gave me better gas mileage and seemingly, more power. Great product! Will be buying again.

These work well in my 2014 Corolla, but gapping them was a little hard. They say these are pre-gapped, but the gap is way smaller than the OEM recommendation -- so much so that it was almost impossible to get a gapping tool between the electrode and the metal.I had 2 cylinders misfire so I just replaced all the spark plugs, and these made the codes go away. I figured I'd try these first as they are cheaper than ignition coils, then go for coils if these didn't work. But they did!

Excellent spark plugs they fired right up. Great product.

I purchase NGK plugs for all my Asian vehicles, and these were for my 2014 Prius V. No problems with installation, fired right up, and runs like a champ, getting fuel economy exceeding CAFE standards. They're pricey, but they are what the car requires, and if you're lucky, you'll only do these about three times in the car's useful life with a service interval of 120K miles.

Got these for my 2013 Prius V and they work great! Very happy with this purchase!