DENSO Iridium Spark Plugs SK16R11 Review

Plugs are cheaper than local stores. Easy upgrade to my 2008 Prius Touring model. The car sounds good. I installed them with coils a week ago.

DENSO spark plugs are made at a high level. If your car, truck or motorcycle needs DENSO, DO NOT buy a replacement. The price is right, delivered as promised, completely satisfied.

They arrived quickly and the gaps were almost ok. I opened one up about a thousandth to match the others. The outer OEM box was damaged as was an inner box but the connectors were ok.

This was perfect for our 2005 Toyota Matrix. Our car has better gas mileage and runs smoothly now. We should have used them earlier even though it works so well. I would definitely buy them again. I had to check the gap but gaped pretty close.

I bought a used 2008 Toyota Prius which was a bit noisy when accelerating. After installing these spark plugs the ride was smooth, very quiet and gave much better acceleration as well as an increase in fuel consumption per gallon. I highly recommend these spark plugs as they are the exact same ones fitted to this car at the Toyota factory.

I bought these spark plugs because I needed to check the smog on my 2008 Yaris that had driven over 150,000 miles and the spark plugs were never changed. I put them in, passed the test and now after a month the car seems a little more alert and my gas mileage is up 2-3mpg. I would recommend this seller and these forks, at least for Yaris. I give it 4 stars for durability as it's only been a month.

I've changed spark plugs on my other cars and never noticed much of a difference. For the first time I noticed a big difference. I changed the Toyota 05 matrix to sk16r11. I was surprised that sk20r11 was installed (wrongly). The thing runs incredibly smooth. especially when starting! I was very surprised! everything around works better. I don't understand why the previous owner didn't install sk16r11 but never did.