NGK NGK Step Colder Spark Plugs - Mazdaspeed3 and LTR7IX-11 for Mazdaspeed 3/Speed 6

[Raider]

I am ordering the CPE Motor Mount from PG tomorrow. I am looking around for stuff I did not know I needed. Has anyone used these plugs before? I am considering them. I have an intake and BOV. Will have a TMIC soon. Think I need em, or stick with stock>? I have 20K miles on factory plugs righ tnow.

http://siteground207.com/~protegeg/product_info.php?cPath=281_160_403&products_id=1343

[k-lea]

I was told that buying "colder" spark plugs was retarded and a waste of money.

Wish I could remember his reason why..
Either way, he is a legend in mechanics and I haven't spent more than I should on a set of spark plugs ever again.

[Raider]

yeah, I was thinking the same, but thought I would see if these are worth it. I bought fancy ones for my P5, but always went back to NGK OEM style. With the turbo, I was not sure if that made a bug enough difference to matter.

[k-lea]

I wouldn't do it.

[kansei]

Well it had the turbo stock.. how much more whp are you making with your mods?

I really doubt a colder plug is needed from the sound of it. Granted, you can always buy them, slap them in, and see for yourself. If they aren't better for you at this stage, just take them out and keep them in the box for when you are modded enough to need it.

Are the stock plugs iridiums? You definitely shouldn't need new ones yet.

[Raider]

Roughly 260. No dyno yet. Will be skipping them.

[kansei]

daaaaamn that's massive gains with an intake. Even then it's not a serious % gain over stock, so I dunno.

[Raider]

daaaaamn that's massive gains with an intake. Even then it's not a serious % gain over stock, so I dunno.

I am only referencing what a local guy got with the same mods. My car probably has less hp.