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Myanmar, Naypyidaw
1 Level
698 Review
65 Karma

Review on πŸ”Œ Denso 4506 PKH20TT Platinum TT Spark Plug, Pack of 1 - Improved for SEO by Philip Brianne

Revainrating 4 out of 5

Fits 2013 WRX

So far so good. As usual, working on Subaru's EJ engine isn't exactly fun. I gently clamped candles to 0.028. Even as a beginner with the right tools (16mm spark plug socket, 3" short extension, swivel and other sockets like 10mm and 12mm) I triple checked by watching YouTube videos that I could do it. Don't use anti-seize lube as I've read many reports of possible contamination causing problems. Of course you don't want to overtighten the spark plugs. Now, before the replacement, it idles about 60,000 miles better.

Pros
  • Twin tip technology with 11mm platinum center electrode and 11mm titanium ground electrode
Cons
  • Questionable purchase for the elderly