Spark Plugs - Toyota Yaris Forums

walt101786 · 12-12-2011, 02:47 AM

hey guys, as i know that some and many of us here have their own opinion and everything...but here's what i wanna know and willingly to learn....i know for a fact that our yaris comes with iridium plugs....which i know that its pretty good for it as well...but i've been doing some research for sometime already....here's are two of my option, i am thinking of either pulsestar plugs and NGK iridium plugs....so what i am asking is that have anyone are currently using pulsestar plugs? if do any differences? such as hp gains, torque and mpg and so forth...i know that it should help but, all i wanna know is that if anyone of us are using it and notice anything at all...so plz help me out a bit...thanks

Jedz123 · 12-12-2011, 07:57 AM

Iridium NGKs are by far the best things you can put in any engine. I ran Iridium NGKs in all my cars. I also Run Iridium NGKs (when available) in my Motorcycles as well. I've tried all the "special plugs" out there but the best plugs I've come across are the Iridium NGK's or standard NGKs, the special plugs like quad spark and diamond tipped and all that crap ended up failing me, I got my money back once for a set of Bosch Quad spark for one fouled in 2k miles. Switched to Iridium NGKs and they lasted for the rest of the life of the car!
But for HP even if you were running stock crap Autolites and switch to Iridiums, the only way you'd notice any gains especially in a car is if one of your plugs was fouled out and you were miss firing under load. we are talking 4hp max if that in gains... Not noticeable in a car and barely noticeable on a motorcycle. When I made the switch on the bikes I didn't notice any real gains..
I run Iridium's when I can for they last longer and tend to take abuse better than any other plug out there. But NGKs are the best I've dealt with, if I can't get iridium I always put yellow box (standard) NGKs in.

mr_miles · 12-12-2011, 01:00 PM

I'm pretty set with NGK's, I come from rotary world, lol. I only ran them on my rx7. everything else just...sucked.

12-12-2011, 02:47 AM	#1
walt101786 Drives: 07 Toyota Yaris Hatch-Back Join Date: Jul 2010 Location: Cerritos, LA CA Posts: 93	Spark Plugs hey guys, as i know that some and many of us here have their own opinion and everything...but here's what i wanna know and willingly to learn....i know for a fact that our yaris comes with iridium plugs....which i know that its pretty good for it as well...but i've been doing some research for sometime already....here's are two of my option, i am thinking of either pulsestar plugs and NGK iridium plugs....so what i am asking is that have anyone are currently using pulsestar plugs? if do any differences? such as hp gains, torque and mpg and so forth...i know that it should help but, all i wanna know is that if anyone of us are using it and notice anything at all...so plz help me out a bit...thanks

12-12-2011, 07:57 AM	#2
Jedz123 Two Wheeled Fiend Drives: 08 Yaris 2D Lftback 5-speed Join Date: Feb 2011 Location: Centeral VT Posts: 18	Iridium NGKs are by far the best things you can put in any engine. I ran Iridium NGKs in all my cars. I also Run Iridium NGKs (when available) in my Motorcycles as well. I've tried all the "special plugs" out there but the best plugs I've come across are the Iridium NGK's or standard NGKs, the special plugs like quad spark and diamond tipped and all that crap ended up failing me, I got my money back once for a set of Bosch Quad spark for one fouled in 2k miles. Switched to Iridium NGKs and they lasted for the rest of the life of the car! But for HP even if you were running stock crap Autolites and switch to Iridiums, the only way you'd notice any gains especially in a car is if one of your plugs was fouled out and you were miss firing under load. we are talking 4hp max if that in gains... Not noticeable in a car and barely noticeable on a motorcycle. When I made the switch on the bikes I didn't notice any real gains.. I run Iridium's when I can for they last longer and tend to take abuse better than any other plug out there. But NGKs are the best I've dealt with, if I can't get iridium I always put yellow box (standard) NGKs in. __________________ 2008 Suzuki B-King 2001 Yamaha FZ1 (2005 motor swap) 1998 Suzuki Bandit 1200S 1983 Suzuki GR650 2008 Toyota Yaris 2DR HB (The Cage) Last edited by Jedz123; 12-12-2011 at 08:21 AM.

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12-12-2011, 01:00 PM	#3
mr_miles Drives: 2013 Yaris Join Date: Oct 2011 Location: Portland, OR Posts: 914	I'm pretty set with NGK's, I come from rotary world, lol. I only ran them on my rx7. everything else just...sucked.