LEXter

yo....

i have been looking at most of GS owner's description of what they fixed up on their car but haven't seen people installing spark plugs. I have seen those spark plug from ebay going for like $70 and claiming that there is an increase in 5hp. Do those stuff really work or are there any better spark plugs in the market for the GS?


LESter

mcgong

Beru makes a good spark plug. Not sure if they make if for Lexus though, I don't see why they wouldn't. I have used these before and they work well. Don't know about the horsepower increase, some have said that it gives you around 5 horsepower. I think they are like 8 or 9 dollars a plug.

http://www.beru.com/e/products/01/

///MDex

Someone here has used the Torquemaster plugs and has had favorable results.

I had mine changed out at 45k with factory replacements, just cuz. Factory is Denso, and they are, from what I understand very good plugs in and of themselves.

I think TRD makes a plug as well; not sure how they differ from factory. Call SG to find out.

But FWIW, don't pin high hopes on noticeable HP - new plugs will give you higher butt-dynometer readings reagardless of manf.

HTH

fever

I'm running torquemaster plugs-Bosch copied this design with the latter's +4 design. While the densos are some of the best I am very happy with the torquemasters. It is my belief that I have smoother power delivery but hey, how the hell do I really know that? I am on the lookout for a dyno day (all day long) to compare and contrast certain mods. The only problem is that I'm not a gearhead and have learned much about actually working on cars on the fly.
Long story shorter, I love my torquemasters and believe that they gave me a gain in power.

enginyr

I bought the denso iridium plugs. Been in my trunk for a month. I'm waiting to go get an oil change for them to install.

///MDex

Oh yeah - any you guys considering having the dealership install 'em, and you have a STB, be sure to remove it before you go.

Mine tried slipping in an additional hour of labor during the spark plug install to take off then remount mine. I called them out on it and told them they could charge 15min.