K&N 66 vs. 77 Series vs. Sixth Element CAI: Which Did You Choose and Why?

Pappy · 2025-11-18T04:09:12+00:00

I had my TRD-OR 6MT dyno tuned today by https://www.camtuningperformance.com/. Cam came over to the house on Saturday after a club breakfast, and did a minor tune on my truck. Today, he did his dyno tune. I was pleased after the minor tune he did on Saturday. I was super impressed driving home this afternoon after the dyno tune. I can't wait to get the truck on the road for another adventure. This was on 91 octane and 285/70 tires.

TrdMarkey

Member

Aug 6, 2025

Those who have K&N CAIs, did you go with the 66 series or the 77 series, and why? They seem very similar, except the 77 series appears much easier to install. I’m also considering the Sixth Element CAI. Would love to hear what others think about each of them.

Just a heads-up, though: as someone who went down the CAI rabbit hole in my early years, you only reap the benefits of these if you also get a tune to adjust various ECT parameters for the different airflow.

Without a tune, aftermarket intakes can actually hurt performance more often than help. One of the reasons why I'm still weighing my options before making any decision.

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