KevGS460ML

I just wanted to give everyones heads up on my GS with new plugs. Even many on here are correct that the new plugs will last longer than the dealer's recommended 60k miles replacement, they may not perform as well as when they're new. With the new plugs i definite felt the car is more responsive. So if any of you are contemplating on whether or not to get it done I'd say go for it. They also swapped out the OEM brake fluid with the blue racing fluid and that too gave the pedal more feel as well. When stepping on the brakes you will feel the pedal to be harder. It's kind of like the feeling you get when you put new pads in, and you dont have to press the pedal as far to get it to catch. It's kinda hard to explain. In any case i just wanted to give an update

alchemist

iTrader: (1)

Good to know. Which plugs did they use?

KevGS460ML

They quoted me the same price for the NGK and Denso, but recommended that I go with the former.

energie8

I ordered NGK Laser Iridium and when I was about to install them, they were both different sizes, the NGK is slightly shorter. Is it suppose to be like that? I got worried so I took it back to the parts shop and they even showed me it was the correct part # on the computer and they called NGK to confirm it was the right one for my GS. Anyone had this issue before?

XxGoKoUxX

why don't you use denso plugs? they're the EXACT fit and O.E. spec plugs for our cars, they last a long time, and last I checked, Denso plugs are very comparable to NGK's.....

All in all, I purchased by Denso and am now looking to do a change @ 30k (I bought the performance version instead of hte long lasting version). If you buy the long lasting version, I still reccomend the change interval @ 60k, this is simply because the plugs DO get worn out after a while and you don't want to run into this issue: