lexus114

WOW,180,000 on original plugs! Now you see why I am going to stay oem right? 20 years ago,this would have been unheard of. 30,000 miles max in those day`s.

archangels

when do you normally change spark plugs? how many miles? im not sure if previous owner changed spark plugs, with gas prices these days i might change mine out

lexus114

Well,Lexus recomends change them @ 120,000 miles,I will probably go 150,000

smerre01

Yeah it is pretty amazing...however I am still comfortable with my choice in Bosch Ir's. I mean if I check them in 15K and see concern I will throw the denso back in, but car runs great, fuel milage went up a lil'....I have no worries at the moment.

archangels

are oem spark plugs laser platinum or laser iridium? anyone know where i can buy new sparkplugs for a good price?
will these work? or is oem better? heres link:
http://cgi.ebay.com/ebaymotors/ws/eB...TQ:MOTORS:1123

Lexmex

Let me ask this, do you plan to do some intake work?

archangels

after magnaflow experience savings on gas i am thinking of it big improvement what spooks me is i saw your diy on sparkplugs looks tough is that the only way to replace spark plugs?

archangels

if i do intake what you suggest? torque masters? are they pre gapped or you can't pregap? thanks

Lexmex

Torquemasters are pregapped (actually when I checked the gaps, they were all perfect). I am considering in the near future to try some pulstar plugs. One of my best friends has them on his Z06 (guess who gave him the idea) and they do have some pop in them, it is noticeable.

What mileage are you at?

archangels

72somethingmiles, you got link to that pulstar plugs, what plugs you recomend with intake and magnaflows? will oem not do it?

Lexmex

You can probably go a bit more on your stock plugs. I changed mine out at 60K, but they can go a bit more. If I had to pick at the moment, I would go with the Torquemasters. I am still waiting to see a bit more on the long-term use of the pulstars (how long they last), http://www.pulstarplug.com/

archangels

when you changed out your plgs at 60,000 miles did they look bad compared to new? also what worked better torque master or pulstar plugs?

Lexmex

Lexus changed out my plugs at 60K, that was many years ago. Have no idea on the condition, but as others have reported, the OEMs can go longer. I have no idea on torquemasters vs. pulstar as I haven't experimented with both in my RX yet. However, in my buddy's Vette Z06, the kick is noticeable from these plugs. Budget restraints for me are keeping further modifications in check at the moment (I guess a lot of us are in the same boat).

archangels

yup kinda getting low on money... gotta go step by step little at a time, you always got great product ideas i get amzed on especially rare items i have never seen that look promising...

rx300s415

So which NGK's are the stock(OEM) spark plugs? Is it the NGK Iridium IX's or something else? (Does anyone have the NGK part number for the OEM?)