for my 2013 tsx tech package

 

Factory NGK or denso brand. My 2009 came with densos from the factory but I believe they switched back to ngk plugs in later years. Replaced my densos with ngk. My preference is ngk but you can't really go wrong with either. Just make sure they are the factory replacement iridiums and one of those two brands. Bosch, ac delco, autolite brands are not for the jap cars.

 

I believe the service manual explains a life expectancy of 100K miles. I've read into the topic a bit and some say they easily could go over 100K, while others think its blasphemy and change them out every ~50K. Luckily our engines are very easy to change them unlike *cough* Subaru.

 

+1 ngk