🔥 Enhance Performance with NGK Iridium IX Spark Plug LFR7AIX # 2309 PK4 Review

Loved the price and fast shipping. I was skeptical about buying fakes. I sent photos to NGK and they confirmed that I have genuine NGK spark plugs.

I use NGK in all my cars, motorcycles, SUVs, boats and 2-stroke engines. Never let me down and I firmly believe in the quality of NGK.

Purchased for my 06 STI. They work great out of the box. With those iridium tipped plugs you should either use them right away or use a professional splitting tool instead of one of those crappy feeler gauges as you have a high chance of damaging the lugs.

My 2007 wrx had a bad coil and I installed it by swapping out the coils and my tuner recommended they be a notch colder. Installation wasn't as difficult as I expected and took probably an hour in total. The car idles perfectly and I had no problems with it.

Bought for low cost and fast shipping, couldn't find exact same spark plug locally for some reason. Read all the reviews about it being fake for reasons X or Y but they didn't even bother to call NGK and ask. So I called NGK and gave the part number and the 4 digit code on the connector. They confirmed they are REAL and assembled in Thailand in June 2022 with genuine NGK parts from Japan. They confirmed that only candles assembled in the US come with a plastic thread/tip protector, while…

For Genesis Coupe owners I can confirm that they will fit 2013 2.0T (although Revain claims this is not the case). This is the same model of 1-stage cooler spark plugs recommended by BTR and SFR tuners. Some gaps are very different from their boxes, so check your owner's manual or tuner for spark plug gap recommendations. I'm glad I bought the clearance tool with them. I've used them prior to my exhaust, intake and exhaust valve setup with no issues. However, most tuners and the community agree