I'm at work right now so don't have much time to do a search, are any of you using these plugs ? do you like them ? how are the working for you ?

 

oem plugs are the best no doubt.

 

I'm better sure your right. but do you have some fact to prove that ?

 

yea because theyre expensive iridium spark plugs that are good for 100,000 miles. theyre top of the line spark plugs. thank you toyota.

 

thanks bigwillystyle23 .. but do you have actual fact? something solid other then more expensive iridium plugs that are food for 100,000 miles ? I or a link that can show me why the how the stock plug better then the E-3 plugs ?

 

"Iridium IX Spark Plugs are the most technologically advanced high performance plugs available." -ngk

 

thats good but do you have something thats not from the sellers web site. something like a 3 party test

 

you could conduct your own test and tell us about it

 

Yea, theres a reason that toyota put them in the cars stock. They are good plugs and perfect. No need to change unless boosted

 

i heard E3 plugs work great and give some gains and smoother/faster starting power, it was somwhere in the scion forums but i cant find it anymore, try it and tell us =D

 

Spark plugs will not give you a horse power gain.

 

yea but im just quoting how they are, either way using iridium OEM plugs u wont notice much differenece

 

if the man wants to spend money.. let him spend it, if he wants to downgrade let him do it i say. sounds like we've given him enough reason not to but if he wants to just let him.

 

no one has really given any solid reason. More of it sounds like stuff you have heard from someone else . The reason I asked about the E3 plugs is cause their design. They have a center opining that lets the spark come directly into the combustion chamber. ( why this hasn't been done before who knows) Most spark plugs don't have a design that lets this happen. sure the effects of this might be something so minor if any, then again they might not. I wanted to know if anyone on here had them, any problems with them ?

but since everyone think the stock plugs are the best thing in the world I guess not..

 

The Bosch platinum 4 uses a similar design. Your right, it could be a better plug, but no one has tested them. i would NOT reccomend them in the tC, it has some bad a%% plugs anyways, just pull one and look, even after 40k they look good

Now, take an older vehicle, and compare a cheap copper plug to a e3, you'll probably see a big gain. but with Coil on plug and Iridium(which has the best characteristics in terms of metal for plugs) the stock tC does not need anything different. the gains would be maybe, maybe 1-2 hp, which could just be dyno error....

If nothing else, buy them and try it....

 

that is by far the best answer I have read on this thread.. so far ..

 

i try.......

 

You wouldn't get a performance gain on any car, you would get a dramatic change in overall engine durability and gas mileage.

 

Unless you are not getting sufficient spark in the first place...