NGK (LFR6AIX-11) Stock Heat Range Iridium Spark Plugs Subaru STI 2004-2021 (Qty 4) | 6619

Rated 5.0 out of 5
Based on 7 reviews
SKU: ngk6619
Availability: 44 In Stock Learn more
Type: Engine Spark Plugs
Regular price
$29.87
Regular price
$33.80
Sale price
$29.87
Instant Discount

Regular Price: $33.80 - Instant discount: $3.93 = $29.87


Subtotal: $29.87

Delivery Options:

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Fitment Information:

Subaru STI 2004-2021

Features:

  • Sold as a set of 4 spark plugs
  • Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
  • Corrugated ribs prevent flashover
  • Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer
  • Copper core aids in heat removal
  • Triple seals prevent leakage
  • Longevity: 50k Miles
  • 60 Days manufacturer Warranty

Shell
Spark Plug Thread Diameter: 14mm
Thread Pitch: 1.25mm
Seat Type: Flat
Reach: 26.5mm (1.04")
Wrench Diameter: 5/8" (16mm)
Terminal Type: Solid
Gap: .043" (1.1mm)

Center Electrode
Electrode Tip Material: Iridium
Electrode Core Material: Copper

Ground Electrode
Material: Nickel
Type: Standard
Shape: Taper Cut

Specifications
Resistor: Yes
Resistor Value: 5k Ohm
Manufacturer Heat Range: 6
Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6lb. ft.


Why NGK Iridium? More Durability and a Higher Melting Point compared to Platinum, better center electrode anti-oxidation and anti-erosion, improved ignition, superior anti-fouling, lower required voltage, new metal shell plating process for better anti-corrosion. One Step Colder plugs are recommended for cars with heavy modifications. These NGK plugs will get your Turbo Subaru running smoother and free up some power through increased efficiency and increased heat resistance. These are available in stock heat or one step colder for cars running approximately 100 horsepower more than stock.

Import Image Racing is an authorized dealer for NGK Spark Plugs. Purchasing from us guarantee's that your NGK products are always authentic and covered by manufacturer warranty.

average rating 5.0 out of 5
Based on 7 reviews
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Review posted
Reviewed by Shawn S.
Verified Buyer
Rated 5 out of 5

Ngk. Enough said

Can’t go wrong with ngk plugs. Perform great and same as oem. 40k Maintance items. Remember regular Maintance on you subie is the key to your cars happiness and your wallet

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Reviewed by Aaron M.
Verified Buyer
Rated 5 out of 5

Plugs still looked great after 1 year.

Just yearly maintenance on a wrx sti. NGK is a great go to plug for tune up.

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Reviewed by Curtis C.
Verified Buyer
Rated 5 out of 5

Did the trick!

Hesitation during increased acceleration. Swap out for some new plugs and she’s running a lot better!!

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Reviewed by Corey L., from United States
Rated 5 out of 5

Awesome

I run this spark plug in my 15 sti best plug on the market for a stage 2 car

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Reviewed by Sebas, from United States
Rated 5 out of 5

Best plugs when going for oem heat ranges

Fast shipping

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Reviewed by Dylan M., from United States
Rated 5 out of 5

Amazing! Priced Well!

Previous owner never changed my plugs and made a huge improvement.

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Reviewed by Austin K., from United States
Rated 5 out of 5

Fast and priced well!

These came on a day early and worked perfectly. Definitely would recommend.

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