what is the best spark plug for the j32a2 (03 CL-S 6MT)? I have been trying to look and different sites are giving me dierent ngk numbers. ngk or denso iridium is what im looking for, but im not sure about the part number. i know the auto and manual cars came with different plugs, but what is the part number?

 

https://acurazine.com/forums/showthr...ighlight=spark

thread i made compiling most of the popular plugs. scroll down to see bosch and others. i like the iridium IX. my starts and gas mileage has increased since install. seem to perform nicely.

 

Denso Iridium IK 20