E3 Spark Plugs E3.64 Premium Automotive Spark Plug with DiamondFIRE Technology, 14mm Thread, 0.750-inch Reach, Gasket Seat, Optimized Performance for Import Vehicles, Pack of 1

E3 really surprised me I own a 25 year old BMW I've used Bosh which is factory recommended and car idles fine with the Bosch but where the E3 really surpassed the other brands is at higher rpm's the E3 will produce a stronger spark say when your cruising the highway at 80 + mph you'll notice a more complete burn of your fuel due to the stronger spark I highly recommend these plugs especially for a high mileage engine and my engine is at 230,000 miles and still runs strong.

We have 2 BMWs (650i and a 330ci) and 1 Audi (A6) in the household and I have installed E3s in all of them. First I would like to say that E3 should expand their marketing to include German built cars. My BMW dealership and other BMW specific repair facilities have never heard of them and warned me not to install anything but manufacturer recommended OEM replacement plugs as I would most likely generate a engine misfire or at the very least a check engine light that would cause me to have state inspection problems. None of these things have happened. In fact all three cars have never run better. They have more power and get better mileage. I would recommend E3s to anyone who asks.

Sparking up as we speak

If they make E3 plugs for your vehicle, give them a try. You'll notice the difference.

Works better than standard plugs for sure. I noticed a difference immediately. Slight increase in horsepower, but the increase is noticeable.

Perfect for outboards had last set in for 5 years without fouling honestly last set looked as good as new set. 500 hours

I bought these after seeing them on TV. I'm not usually the kind of person to talk down a product, but in this case I feel obligated. I purchased these for my 2003 civic to replace my plugs. Within a month, the engine was stuttering and hesitating. I brought it for service and they said my ignition coils were failing and needed to be replaced. $450 for diagnostic, new coils and labor. At first I assumed it was just the coils' time to go... but my new set of coils didn't make it more than 2 miles from the shop before the engine started acting up again! Cylinders 1-3 were misfiring. Shop guys said the plugs blew out the brand new coils in 5 minutes flat! They replaced them and threw in some new plugs because they felt bad for me. Haven't had a problem with fresh coils and new plugs. I'm in the process of writing the company to see if I can get them to pay my bill. This is a clear case of crappy merchandise.

Noticeable cold start improvement new vs. new. I’ve had iridium ngks and these seem better for my stock 2001 Volvo v70 t5

Waouh Immediate power. I'm impressed. I put them in my Subaru Legacy. Even the sound of the engine changed to a roar !

Made a noticable difference to preformance.

Bought theses for my car it said it was for my car but they did not fit. Just buy them from a local shop and save the hassle!

Couplé à une filtre a air gros débit (K1N ou GREEN) la différence est saisissante. En termes de réactivité et de performance.

Je n’ai pas pu l’installer sur ma voiture, c’était censé fonctionner sur une mini, mais elle sont trop grosse, par contre elle semble de qualité.