1.4 TSI EA211 MQB - DENSO IXU27 (5337) Iridium Power Spark Plugs

DENSO IXU27 (5337) Iridium Power Spark Plugs
For High-Power 1.4 TSI EA211 Builds – Stage 2 & Stage 3 Ready

When pushing your 1.4 TSI EA211 to its limits, your spark plugs need to keep up. The DENSO IXU27 Iridium Power spark plugs are our go-to choice for Stage 2 and Stage 3 big power builds, including our own 250+ BHP RUN APC IS20 Turbo-Swapped Scirocco GT. Designed with ultra-fine iridium electrodes, these plugs offer unmatched spark efficiency, combustion stability, and long-term durability—even under hard boost.

⚡ Engineered for serious power and proven under pressure—DENSO Iridium Power plugs, especially when paired with our uprated ignition coils, deliver next-level performance for your EA211 build.

🔥 Built for Big Power – Trusted in our Stage 2/3 builds running IS20 turbos and beyond.
⚡ Iridium Core Technology – Superior spark strength, heat resistance, and lifespan vs. traditional or platinum plugs.
🛠️ Track-Tested. Daily-Driven. – Performs flawlessly in high-heat, high-load environments without compromise.
✅ Perfect Fit for EA211 Engines – Direct fitment for 1.4 TSI engines with CZCA and other EA211 codes.
🔧 Pair with Our Upgraded Ignition Coils – For maximum spark energy and reliability under load, we recommend running these plugs with our Upgraded Ignition Coils for the 1.4 TSI EA211—the perfect match for tuned setups.

💥 Now Available as a Bundle – Grab these plugs together with our uprated coils at a discounted price—more performance, better value.

📈 Proven Gains – DENSO testing shows up to 1.4% more horsepower and 5% better fuel efficiency vs. standard plugs.

🧊 What Does “Colder” Spark Plug Mean?

A colder spark plug dissipates heat from the firing tip more quickly. This reduces the chance of pre-ignition or knock in high-boost, high-compression, or high-RPM conditions—making colder plugs ideal for tuned engines, spirited driving, or track use.

In contrast, standard plugs run hotter to self-clean in lower-load conditions, which is better suited for daily driving and stop-start use.

💥 Why Choose DENSO IXU27?

• Colder heat range = better knock prevention under boost

• Iridium tip = faster ignition and more complete combustion

• Ideal for Stage 1+ remaps, intake/exhaust mods, or drivers pushing their EA211 MQB engine beyond stock limits

Package Contents

4x DENSO IXU27 (5337) Iridium Power Spark Plugs

Compatibility

🚗 Vehicle Compatibility (2012–2020 MQB platform):

• VW Golf MK7 / MK7.5 1.4 TSI (2012–2020)
• VW Polo MK6 1.4 TSI (6C) (2014–2017)
• VW T-Roc 1.4 TSI (2017–2020)
• VW Tiguan MK2 1.4 TSI (2016–2020)
• VW Scirocco MK3.5 1.4 TSI (Facelift models, 2014–2018)
• Audi A1 1.4 TFSI (8X) (2010–2018)
• Audi A3 1.4 TFSI (8V) (2012–2020)
• SEAT Leon MK3 1.4 TSI (5F) (2012–2020)
• SEAT Ibiza MK5 1.4 TSI (6P) (2015–2017)
• Skoda Octavia MK3 1.4 TSI (5E) (2013–2020)
• Skoda Superb MK3 1.4 TSI (3V) (2015–2020)
• Skoda Karoq / Kodiaq 1.4 TSI (2017–2020)

🧰 Compatible Engine Codes (EA211 MQB):

• CZEA, CZCA, CXS, CTE, CZE

(If unsure, drop us a message with your reg or VIN—we’ll confirm fitment fast.)