Header banner
Revain logoHome Page
e3 spark plugs e3.66 high-performance automotive spark plug, single pack logo

E3 Spark Plugs E3.66 High-Performance Automotive Spark Plug, Single Pack Review

6

·

Excellent

Revainrating 5 out of 5  
Rating 
5.0
🧯 Ignition Parts, 🛠️ Replacement Parts

View on AmazonView on ЯM

Media

(4)
img 1 attached to E3 Spark Plugs E3.66 High-Performance Automotive Spark Plug, Single Pack
img 2 attached to E3 Spark Plugs E3.66 High-Performance Automotive Spark Plug, Single Pack
img 3 attached to E3 Spark Plugs E3.66 High-Performance Automotive Spark Plug, Single Pack
img 4 attached to E3 Spark Plugs E3.66 High-Performance Automotive Spark Plug, Single Pack

Details

BrandE3
Gap Size0.04 Inches
Top Material TypeAlloy Steel
Vehicle Service TypeCar

Description of E3 Spark Plugs E3.66 High-Performance Automotive Spark Plug, Single Pack

FOR OPTIMAL PERFORMANCE: Automotive spark plug that fits a variety of import and domestic applications, designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions. PATENTED TECHNOLOGY: DiamondFIRE ground electrode is secured to the shell with 3 legs that help facilitate excellent heat transfer and increase turbulence in the cylinder. INCREASED DURABILITY: Designed with colder heat ranges to enable performance modifications, and contains Yttrium-enhanced alloy for up to 8% reduction in side wire temperature for less pre-ignition. WHAT'S INCLUDED: One (1) E3.66 spark plug. Features 14mm thread diameter; 1-inch thread reach plug with taper seat; 5/8-inch hex size.

Reviews

Global ratings 6
  • 5
    6
  • 4
    0
  • 3
    0
  • 2
    0
  • 1
    0

Type of review

Revainrating 5 out of 5

Inexpensive spark plugs and wires

My 2006 Dodge Grand Caravan started at 60 miles. It's now at 438k, thanks for the E3 spark plugs, and my mileage has increased by 1-2mpg. Watch E3 on YouTube

Pros
  • Lots of positive vibes
Cons
  • Not sure

Revainrating 5 out of 5

Buy it, you will love it

I was skeptical about the flood of advertising in magazines and on television. I tried them luckily they really work, they smoothed out my engines idling and increased my MPG.

Pros
  • Absolutely amazing!
Cons
  • No service

Revainrating 5 out of 5

Fixed gap is a problem

Runs great so far, 10,000 miles. Just one problem! It is not possible to reopen a gap on them if you switch to a high energy coil. So my next kit will have to be another brand that can be converted as I will be doing a reel upgrade.

Pros
  • Good product for the price
Cons
  • Not bad

Revainrating 5 out of 5

Best Value Spark Plugs ‼

I used Champion spark plugs on my Harley and they failed within a month. I switched to E-3 spark plugs and haven't had to change them for 3 years in a row. Now I have them in my Chevy Z-71 4X4 and I can feel the difference in performance.

Pros
  • Perfect for outdoor activities
Cons
  • Requires outlet