Meets all specifications provided by the manufacturer and its performance is superior

Again, these are not worth the extra money when you could see much better performance with other options.

I am certain it was some, as well as overall improved performances and elimination of some hesitation when accelerating.

The first motor I installed these plugs in was a 1992 Magnum V-8 that was originally a 5.2 liter 318 CID that was bored and stroked out to 410 CID which is 6.7 liters with an MSD 6AL Ignition Box, Accel Distributor, MSD coil, Taylor Wires, Python fuel injectors, Flow Tech Headers, Crane Cam, Edelbrock Heads, Mopar High Performance Intake, Mopar Performance ECU and many other performance producing and enhancing products

thanks great buy

My buddy races super stocks at colorado national speedway and he uses them as well.. great great buy.... fuel eco,horse power,torque not sure how much but some, and longer engine life, plug save allot of money on gas down the line.

before the E3's we were barely able to get up in to the mountains.. now it is a breeze... great buy

fast shipping good buy and they worked better than expected

E3 plugs seem to be working well, so far, in conjunction with other parts

Since then the new plug has been working great with no issues at all, and just like the original E3 we had been using before, this plug makes a noticeable differerence in fuel consumption which is particularly important for a full house generator during our often days long winter storm caused power outages with daytime highs in the teens and low 20s!

This plug works really well, notice the difference in my gas mileage already

Work excellent in my vehicle I recommend to all my friends and more

I used them for Acura TL 2.5 1997 and for MDX 2004They are working perfect on bothNot high mileage nowI think they are a good value for money

Great product for tune-up to get our old van back on the road

This product is nice because they are pre-gaped for your vehicle from the factory

The first motor I installed these plugs in was a 1992 Magnum V-8 that was originally a 5.2 liter 318 CID that was bored and stroked out to 410 CID which is 6.7 liters with an MSD 6AL Ignition Box, Accel Distributor, MSD coil, Taylor Wires, Python fuel injectors, Flow Tech Headers, Crane Cam, Edelbrock Heads, Mopar High Performance Intake, Mopar Performance ECU and many other performance producing and enhancing products

I would not recommend this product for something that is used daily

...these Plugs actually ran a little funny for about 7 minutes...then smoothed out and have been running GREAT SINCE

...these Plugs actually ran a little funny for about 7 minutes...then smoothed out and have been running GREAT SINCE

Had to return the product and get NGK g-powers which worked awesomely in my car

The most right spark plug in the picture is the one that caused the engine misfire

The major misfire turns out from being a spark plug that broke in the cylinder and lost the electrode and crown (these pieces remain in the cylinder causing the knocking sound)

Very good spark plugs make a big difference on engine powere and smooth running.

Great spark plug, I used these in my other vehicles and they run so much better

The right 3 spark plugs clearly show slow failure to complete failure

got severe missing and power issues

(smooth idle, good power, increased mileage.....) but these plugs replaced plugs with 70k

I can tell stronger smoother power and better gas mileage

I drive 50 miles one way to work each day, so far it looks like there is better gas mileage, I will drive it for a couple of tanks of gas to make that determination.

Well after 40,000 Miles, one of the plugs fouled out, (not sure which one or if it was more than one plug that failed), the car just started to sputter as I hit the gas on the Interstate the other day

I can tell stronger smoother power and better gas mileage

Put these in a Honda Ridgeline (which are notorius for bad fuel mileage

Complete junkI wish I never ordered theseStarted to get horrible gas mileage and then started missing firing .will post pictures of the spark plugs

Noticed increased horse power no rough idle and better gas mileage.

Complete junkI wish I never ordered theseStarted to get horrible gas mileage and then started missing firing .will post pictures of the spark plugs

I like it comes with a wider electrode to burn more efficiently the gas.

Gas-Saving: unknown, no tools to test that accurately

I purchased the E3 spark plugs falling for their amazing gas savings and other miracles they proclaim

Okay, pretty cheap quality and didnt really improve areas they should have, cheap price so get what you pay for though

Well after 40,000 Miles, one of the plugs fouled out, (not sure which one or if it was more than one plug that failed), the car just started to sputter as I hit the gas on the Interstate the other day

Okay, pretty cheap quality and didnt really improve areas they should have, cheap price so get what you pay for though

The quality of the plugs are good, and price was reasonable

They looked quality and I really appreciated the price per plug

Going back to the NGK plugs before my engine is damaged.

Nothing wrong with NGKs,They just max out when the engine is old, so you have to look else where to enhance an old engine, like mine.

Pros: Does give your engine a performance boost, hands down

Had to return the product and get NGK g-powers which worked awesomely in my car

The engine runs more rough than before

I could instantly notice the difference in acceleration and improved gas mileage on the freeway since I travel constantly

Immediate difference in my 2000 4Runner, bought expensive single plugs and these absolutely blew them away.

Well after 40,000 Miles, one of the plugs fouled out, (not sure which one or if it was more than one plug that failed), the car just started to sputter as I hit the gas on the Interstate the other day

wow what a difference it’s like a new vehicle

Trust me, you will definitely so a difference in the performance of your vehicle

Other comments:If after you install these plugs you notice rough idle issues or similar, you have to reset your engine computer in order for it to run right

Well after 40,000 Miles, one of the plugs fouled out, (not sure which one or if it was more than one plug that failed), the car just started to sputter as I hit the gas on the Interstate the other day

So I reset the computer and that smoothed out the idle issue noticeably

So I reset the computer and that smoothed out the idle issue noticeably

So now you know what to do to fix that poor idle issue

I found cylinder 4 the metal at the end had corroded and burnt away

Removing the pieces would be a large job of over $1000 so I am now hoping that it miraculously exits the exhaust valve, disintegrates (cheap metal), or gets melted and slammed into the top of the cylinder wall