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NGK Iridium IX Spark Plug Set One Step Colder 2006-2014 WRX / 2004-2021 STI / 2005-2009 LGT / 2004-2013 FXT - 2309 - Subimods.com

NGK Iridium IX Spark Plug Set One Step Colder 2006-2014 WRX / 2004-2021 STI / 2005-2009 LGT / 2004-2013 FXT

$42.00
$46.67
$46.67 - $46.67
$46.67
$42.00 - $42.00
$42.00
-10% -10%
142 In Stock, Usually Ships within 1-2 Business Days
SKU 2309
by NGK
Lease to own Pay as low as $/week

DETAILS

Upgrade your Subaru’s ignition system with the NGK Iridium IX Spark Plug Set, designed for performance enthusiasts seeking reliable power and efficiency. These one step colder plugs are ideal for 2006-2014 WRX, 2004-2021 Subaru WRX STI, 2005-2009 Legacy GT, and 2004-2013 Forester XT models, delivering improved throttle response and consistent spark stability for enhanced acceleration.

Featuring a fine iridium tip, these plugs offer extreme ignitability and superior durability thanks to the high melting point of iridium alloy. The trivalent metal plating provides excellent anti-corrosion and anti-seizing properties, ensuring long-lasting performance under high-stress conditions. With a heat range of 7 and a precise .032 plug gap, these plugs are engineered for higher horsepower applications requiring better heat dissipation.

Perfect for Subaru enthusiasts looking to maximize engine performance and fuel efficiency, this set of four plugs is a smart upgrade for your turbocharged Subaru. Trust Subimods for quality Subaru parts and shop now to enhance your ride’s ignition system.

Will this fit my 2005 sti? 

Yes they will!

Will these work with 2015 wrx or sti? 

These will work with the 15+ STI, but will NOT work with the 15+ WRX!

Im running a stage 3 heads block at 20 psi and my builder recommend ngk 5245 what do you recommend i know my build can produce more that 20psi however it misfires ones at 20psi i asked him what gap i need to set the plugs to and he said they are pre gapped i looked and that is 60 i dont believe him please advice? 

For specific questions such as yours, it is best to discuss with a Subimods Customer Support Rep. Please reach out via email to support@subimods.com or call us at 860-291-0015.

I have a 2005 outback xt do these plugs fit was under the impression its the same engine as legacy gt? 

Yes these will fit.

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