Just wondering if any one has tried the new e3 spark plugs for the tc. Everyone is saying good things about but it's in the v6 and v8. Would like to hear what everyone else things. Thanks

 

the best spark plugs for the car... are already installed in the car.

 

yeah, can't do much better than denso iridium spark plugs. maybe NGK iridium...but that is just splitting hairs.

 

OEM or bust

 

id go with the denso. they work great on my mazdaspeed

 

Unless you have F/I on your car, only stick with OEM plugs.

The efficiency/ power debate is negligible only because the spark might be higher, but if the fuel injected into the cylinder can't match, no benefit will be seen.

I'm not sure if they are NGK or Denso, but the kind the tc takes are iridium based.

 

amen to that denso FTW!!! don't be a sucker.

 

actually had the denso iridium on the tC and they didn't work that great, put the NGK iridium brand in (same as the ones as factory) and much better. I've always liked the NGK brand anyway.. Get some NGK part number 4589 called OE Laser Iridium.

 

Denso Iridium came factory in my 07. I went two steps colder for turbo with NGK's but still iridium and same style as OEM Denso, just two steps colder.