Denso Iridium Spark Plugs

[FRANCO]

Has anyone put Denso Iridium Spark Plugs in their 330? I have Bosch platinum 4's, but I heard that the Denso's are suppose to increase the 330's hp by like 6-8hp, and I've never heard of a spark-plug doing that. 6-8hp increase may be small, but anything can help right?

[Hamann330i]

i'm planning to get it within this week, how about i tell you after i test it!!!

[FRANCO]

That'd be great! Thanks, I'd love to know.

[JawKnee]

It really depends on your engine modification levels. Aside from forced induction, I don't think it's worth the money for the Densos at minor modification levels. I would highly suggest using the stock Bosch/NGK plug. There is no need for a colder or different design plug at low modification levels. So don't beat yourself ragged trying to find a 'better' plug.

[330ciGuy]

Denso Iridium plugs are known to smoothen out engine idle, as well as increase low end power. (very minimal, yes, but its present.)

Also, about the colder plugs issue...it all depends on which plugs you get. I believe that IK20's are for engines with FI, while the IK16 are for NA engines.

[speedrat]

Hamann 330I

So what have to experienced after the Denso spark plugs were fitted?