Bro all things I do it myself in my home. ( My parents was angry on me wat the hell u r trying to do go to workshop)
My paernts went to usa we months back i told my father to bring these plugs ... There r thousands of plugs available n u have to choose the correct ones.
I open the site NGK Spark plug, NGK Spark Plug wire, NGK Platinum Spark plug for High Performance and Racing. (this site is only for usa) in this site I didn't find the steermatics engine i.e L15a. Then I see my cars manual which is matching the same plugs as used in R18. (Civics engine). I match wid manual it was same
Abt the performance can feel the difference but very little, but I can fell difference in fuel economy
In our workshops of honda, they don't know abt the steermatics plugs they always install the plugs of i-dsi in steermatics which make pick n fuel economy bad!!!!
The original non iridium plugs for steermatic are: