New Plugs and a Huge improvement!

[YarisSedan]

No offense but i wouldn't put bosh in anything except german cars that are made to take them. Usually make import cars run like crap. You should be putting either NGK or Denso both are the oem manufacture for our car. It could be placebo effect or just that your previous plugs were a bit worn but you will get better performance with a OEM plug

[UberSilver]

Originally Posted by YarisSedan

No offense but i wouldn't put bosh in anything except german cars that are made to take them. Usually make import cars run like crap. You should be putting either NGK or Denso both are the oem manufacture for our car. It could be placebo effect or just that your previous plugs were a bit worn but you will get better performance with a OEM plug

How would you know? If you've never tried Bosch Ir?

You really think a plug knows who makes the engine?

What an asinine thing to say.

If you dont like my report, than either buy some Bosch 9600 plugs, and prove me wrong, or reply with some proof of your own past examples.

Stating that german plugs do not work correctly in japanese engines is a very ignorant point of view.