🔥 NGK 7397 TR5IX Iridium IX Spark Plug, Set of 4 - Improve Engine Performance and Efficiency! Review

These spark plugs lasted exactly 18 months and are completely worn out, less than 7,000 miles. Real iridium spark plugs would last ten times longer, which is very frustrating. save money

Don't put them in an Escalade! Use AC delco, they say they fit, in fact they will rip your truck apart. The gaps are constant and terrible. Paid to have them put in and then had to pay again to have them replaced with Ac Delco. Not worth the time, money or hassle

the insulator flew out of the case the next day after installation the insulator was intact it wasn't torn it wasn't damaged during installation it was defective or a Chinese copy I'm not sure I've never seen anything like this this one in my life I would be wary of such, it was interesting where they came from a lot cheaper than a parts store

I was very impressed with these candles. I used these along with a set of Taylor connector cables on my 2009 GMC Denali. The truck felt a bit sluggish and I decided to change the ac telco Iridium plugs which have done about 50,000 miles. The difference between day and night. The whole work took about an hour. Each fork was easily accessible and interchangeable. I'll update the post with my fuel economy findings.

Installed 7397 NKG spark plugs and a new Edelebrock 22716 Ultra Spark 50 wire kit on a 2001 Chevy Suburban with 270,000 miles on the odometer and what an improvement ! The engine is significantly more powerful and idles like a kitten and no longer downshifts unnecessarily on the route. After that I also installed new ignition coils for MSD 55098 street fires and noticed an even stronger response. When replacing, pull off the valve covers with coils and install new valve cover gaskets. Do not…

I bought 2 sets of my 2006 GMC Yukon and the spark plugs were never changed in the car; They were replaced when the car had done about 105,000 miles and so far so good but today I came across a new YouTube post about fake or counterfeit NGK spark plugs being sold at Revain: I'm pretty sure it's true is if it is a trade The stamp was forged and brought from China. Can anyone at Revain get confirmation from an NGK representative in US or Japan to solve this issue as I could not tell the…

Economical iridium spark plugs that can be ordered as a set of eight (8) 5.3 liter V8 truck spark plugs. No problems with installation as well as plug lifespan and authentication. It is strongly recommended that you verify the required spacing for your particular application and set the appropriate spacing for each grounding electrode. Please do not assume that gapping is preset or correct. Also apply a small amount of anti-seize compound to each spark plug thread and apply (at least) your…