okay.. so i'm completely new to this whole spark plug thing. But i bought some Bosch Platnium+4's but i started reading around online that they aren't good for toyotas.. any opinions or experience?

 

You probably picked them up cause they were on sale? DON'T USE THEM!
Use the OEM NGK plugs cause they're recommended for MOST Japanese vehicles. I'm sure others use different plugs but I guess since I'm a Nissan tech, my "Use only oem prducts" lecture kicks in...

 

good timing, i ended up returning them and went to toyota and got Denso Platniums

 

good idea taking them back.....bosch plugs are only for european cars...using aything other then ngk or denso plugs usually throw a check engine light for a misfire code...well at least that's what happen on hondas...me being a honda tech..lol

 

I;ve heard bad things about the plus 4. Plus it just doesnt seem right to use a german spark plug in a japanese vehicle.

 

^^^Exactly!

 

yeahh. when i had a VW pepboys reccomended i use the bosch plugs.
but with the xB i used the NGK irridiums. good stuff good stuff.

 

Another vote for NGK (v-power), but I find the standard copper to be great for a non-tuned engine.

NOS, supercharged - iridiums might be better, otherwise, I would stick with copper. At $1.29 each, I replace mine once per year. I figure that if I go through all the trouble of pulling the plugs, I might as well replace them.

 

denso iridiums here.....work great last a long time

 

Are the NGK's and Denso's going to give me any noticable power increases? I expected to pay more around $6 or $7. A $1.29 plug doesnt sound to powerful.

 

Plugs wont give you more power, regardless of what anyone tries to tell you:
https://www.scionlife.com/forums/viewtopic.php?t=218921