cheaper probably , better that depends on whether you believe in spark plugs creating performance , truthfully you won't gain very much but a slight bit. i'm just stating that other plugs can be used. if u buy the reccomended plugs theres just less work , but did u know that those recommended plugs are probably factory reccomended for many other cars? the nippon denso's for my supra were stated to fit like 3 or 4 other cars , outta the box. i will say iridium plugs gap should not be changed.

 

Like I've asked many times before,Exactly which plug do you think is "better" than the stock plug in an Xb?

 

Hmm, I'd like to know also. Ya know, for future reference.

 

Iridiums ,i've always liked denso's. ngk's are goot too. i've gone through 3 sets of denso iridiums between different cars and i could feel thru the ol butt -o-meter a tiny gain. theyre not too much , and online is cheaper than in store , in a store they normally run like 12.99 and they can be found about as cheap as 7.00 per plug online.

hey brad what are you running right now?

oh and whatever you guys do, do not run the bosch platinum 2's 3's or 4's they are overpriced and the insulator(the white ceramic part) comes loose letting the spark foul and your motor will bog , it has happened to me twice in different cars and has happened to a friend twice and another friend once. bosch is great but apparently their plugs are not.

 

NGK #BKR5EYAs. I'm not using a different ignition system, different timing, cams, and such, so I don't see a need unless of course I change fuel mixtures, which I won't.

I've tried them all in the past, and only saw differences when I changed them on motorcycles.

I changed to different plugs when I had my Celicas, but that was because one had an 18RG that was slightly massaged, and the other Celicas had modified 20R with different cams, dual sidedrafts, inner valve springs and a whole lot more.

So if my xB wasn't stock, then I would prolly have different plugs.

 

Ditto on Bosch platinums, junk.

 

NGK iridiums, great design. I did a tune up on my buddies toyota corolla and found bosch 4 tips in there. Found the rough idle problem! :D Moved to NGK and had the most perfect idle!

 

Is it just me or is THIS SCOTT17 one of the worst people on Scion Life. Either provide info backing your claims or shut up. People buy parts like these because they want them. This site is used to give help not run your idiot mouth!!!!!!!

 

It's just you. Really. All I ask is for YOU to provide info to back your claims or shut up. And providing people with ACCURATE info is helpful for those with good sense. Toyotas engineers and the fact that the car comes with a certain plug backs my claim rather nicely, don't you think? If you're looking for support from me because you believe hype and bought into it, you will certainly be dissapointed. Any _______ can call someone an idiot, but do you know enough to educate me so I won't have to be an idiot? I am really eager to learn.