NGK LKR7DIX-11S Iridium IX Spark Plug (93175 Iridium Ix), 4 Pack

These plugs are the real deal. Felt a significant difference in the vehicle's performance. Would definitely purchase again

Easy to install. I watched a couple of YouTube videos before installing. Took my time and was happy I did it myself. It would have cost me $200 of more to have the dealer install these. Seems to run fine, will have to see if gas milage improves.

Brought my car back to life and running smoothly even at 200k on my 2011 Acura TSX

Fits Honda Civic 2012 LX. NGK is a great brand for spark plugs, not too expensive, and should come lubricated.

Parts fit perfectly on a 2015 Kia Soul (!) and paired nicely with "ENA" high output coil packs. The fitment was OEM perfect. No misfires under heavy loads and no ECU codes. Total cost with plugs was $80 and took less than 30 minutes to perform. The dealership wanted all day and close to $800. I used to be a mechanic for GM/Saturn, and I see no reason for $800, even if the flag rate for coil and plugs was no longer 1.5 hours @$125/hr. That would make the plugs and coil near $600..no wayyy.

Worked as needed

Had new autolite iridium’s in my 19 Kia soul with 2.0. Should have known better. Bought these NGK’s and instantly got a better idle. Just buy the best and be done with it. Half the price of local part stores.

They work great so far. FYI, there was no iridium pad on the ground electrode, only nickel. The center electrode in this series is the only part with an iridium tip. They were pre-gapped and work great nevertheless. Open the hood, out of the boxes and into the car in less than 15 minutes with minimal tools. Buy with confidence.

Fonctionne très bien . Très satisfaite et en plus beaucoup moins cher que partout ailleurs. Très bon acaht

Excelentes bujias

A muy buen precio las 4 bujias, confirmo que tiene mayor aceleracion con estas bujias, hechas en U.S.

Perfect for kia forte 2016

I recently swapped my old plugs for this 4-pack of NGK Iridium IX ones, and the difference was clear right from the first start. The engine definitely feels like it’s idling smoother, and I’ve noticed a much more responsive "snap" when accelerating. NGK is usually my go-to for ignition parts, and these Iridium plugs live up to the reputation—they handle high heat incredibly well and provide a very consistent spark. If you’re looking for a simple way to restore some lost power or just want to keep your ignition system in top shape, these are worth every penny. Pros: Improved Ignition: Faster, more reliable starts and a smoother idle. High Durability: The Iridium tip is built to last much longer than standard copper or platinum plugs. Better Response: Noticeable improvement in throttle response and overall engine efficiency. Cons: Price: They are a bit more expensive than basic plugs, but the longevity and performance gains make them a much better long-term value.