E3 Spark Plugs E3.80 Premium Automotive Spark Plug with DiamondFIRE Technology, 12mm, 1.000” Reach, Gasket Seat, Compatible with Late Model Import Applications, Pack of 1

Spark plugs look good. Do they seem to increase performance or economy? I’m not noticing anything but its only been a few days. But let’s face it how can I be sure unless I incompared it on a dyno. Will update if I notice anything or have any issues. Car has 103k and this was the first spark plug change. Car ran well before. Old plugs looked good probably could have kept them in but I think after 103k miles it was time.

They are as described and fit as expected. The jury is out as too whether they are an improvement in my vehicle.

Seat of the pants performance as good the OE NGK Iridiums. Have seen 38 mpg trips. Superior buy for 1/3 the price of NGK. Have bought another set because my coils are crapping out, good time to do the plugs.

Has increased my gas mileage since install

After having these for about a month and a half I gotta say these are not worth the hassle. I had put these in my 2014 Hyundai Santa Fe sport as these said they were compatible for my vehicle. The fitment felt and seemed fine as everything ran fine for the first month or so. Then, out of nowhere my vehicle started acting funny as my RPMs started zeroing out for no reason. Felt like if the engine had shut down but still running with less power. I would pull over not knowing what to do next. So I decided to just turn the vehicle off for a few minutes and hoping that if I turned it back on it would work again. Fortunately that worked everything started running fine again and I was able to continue my trip. This symptom keeped occurring everyday from that point on. I ran it like that for about another 2 or so weeks tryin to figure it out as I was not getting a check engine light at all. Until finally one morning I was at a red light it felt like the vehicle wanted to turn off like it wasn’t getting enough gas or something. So I decided that I was gonna replace the spark plugs even though I had just bought these. Luckily I had saved my old ones which still had atleast 10,000 miles left on them. Well go figure after reinstalling my old ones my vehicle started running great again and it has not dropped RPMs or felt like it wanted to shut off. It’s already been 3 weeks since I’ve ran the vehicle with my old ones and still no problems. All in all either my vehicle didn’t like these or they were just cheaply made. I’ve learned my lesson and sticking to the regular gapping spark plugs. Now I gotta go to the auto parts store to get the same ones that I’ve had in my vehicle. Autolite seems to be working just fine with my vehicle

they work as expected and you don't have to set the gap like most conventional plug designs

Needed to perform a tune-up in my wife's car since the spark plugs had never been changed since 2014. Immediately noticed a huge improvement in the car's response! I recommend the great plugs to anyone looking to upgrade from a factory setting.

Have seen less noise and better gas milage from these use on all vehicles and genorator

Spark Plugs Lifetime

J'ai commander des bougies automobiles pour ma voiture. Kia Optima 2013 2.0 Litres turbo. Sur votre site, il est indiqué que ses dernières sont compatibles avec mon auto. Après un essai routier, le moteur avait beaucoup moins de performances, ne tournais pas bien au neutre. Et de plus, le moteur lors de l'essai, s'est arrêté deux fois en marche. Il s'est mis à cognés anormalement. J'ai arrêté tout de suite le moteur et fais remorquer le véhicule au garage. Après analyse de la situation par un mécanicien, les bougies sont très endommagées et le moteur est très endommagé lui aussi et dois être remplacer.$$$$$ Que puis-je faire?? Est ce que j'ai un recours suite à une mauvaise indication de l'article qui était indiquer compatible avec mon véhicule? Est- ce la responsabilité du site ou du fournisseur? En attente d'une réponse. Merci Robin Lareau [email protected]

Exactly how they were described