Plugs...NGK or DENSO

[rob99sp]

I'm looking at the premium Iridium plugs for both NGK and DENSO. I have heard from some people that DENSO's Iridiums are better but have also heard to stick with NGK. Any opinions, experience with any of these?

[howard_w13]

NGK Platinums..........all other plugs aren't worth your time .

[rob99sp]

Shouldn't Iridiums be better than platinums.....they do cost more....>Also Denso claims that the plugs give you more hp....i.e..on a jetta vr6 they should add 9hp....most likely bull shit.

[howard_w13]

Originally posted by rob99sp
Shouldn't Iridiums be better than platinums.....they do cost more....>Also Denso claims that the plugs give you more hp....i.e..on a jetta vr6 they should add 9hp....most likely bull shit.

Assuming that the Iridiums do add horsepower, they may pose some driveability problems in the future. I can't locate the thread, but it lists the plugs to use and the plugs to avoid and I think the Iridiums were on the list of plugs to avoid.

[NismoPC]

Spark plugs don't add HP. That has been discussed here before.

[radicalG20]

Go DENSO