Denso IK20-5304 Installed in GT...Noticeable Improvement!

[retiredfields]

I installed Denso IK20 plugs in my GT several weeks ago. They are Iridium plugs, like the stock ones, but with a smaller tip.I can't explain it, but there is a noticeable improvement in performance. Smoother low end with increased torque, much smoother acceleration, and seems a little quicker. I also had a spot between 4000-5000 RPM where the engine would lag momentarily while accelerating. That is gone also. I am very surprised and pleased. They are $50 for four plugs, but I would recommend them to all GT owners.

[goodvibe]

Congrats on the improvement. Did the same 8 months ago. Noticed the same differences. A good upgrade. I'm glad to get some corroboration. I recommended this a while ago but got tired of defending it. Hopefully others will now try it and get a cheap effective upgrade on the GT.

[Roadpig]

Hmmm...interesting! How many miles did you have on your car when you changed them?

[goodvibe]

less than 10k for me.

[retiredfields]

I had about 5,000. I am also getting a consistent 30+ MPG.

[FusionVGT]

When you say smaller tip, do you mean the center electrode is shorter? Finer? What gap did you set, and what's the stock gap?

[AKLGT]

where might i buy these and how do i install them? thanks.

[AKLGT]

thanks, rob! as always, a help!

[jackospades]

I have noticed everything I put these plugs in have always IMPROVED every aspect of the car. I will install these immediately. Thanks for the tip.