swat1727

iTrader: (2)

when i searched amazon, both plugs came up. what's the difference? THX
here are the links

http://www.amazon.com/Denso-IK16-Iri...tive&carId=002

http://www.amazon.com/Denso-SK16R11-...tive&carId=002

http://www.densoiridium.com/find_part.php?tab=1

GSteg

iTrader: (15)

According to Denso's website, the IK16 are the only available for the GS300. The SK16R11 is meant for the ES300/330.

Only the V8s have the option of either IK20 or SK20 for Iridiums.

GS4_Fiend

iTrader: (22)

I got the IK20 for my GS430. They claim it's a high performance spark plug. I don't feel any difference. They only last to 30k and is recommended to be changed then. Im switching back to the OEM SK20R11 which lasts 100k.

98GS400GUY

iTrader: (1)

SK20R11's are suppose to last till 120k.

ac921ol

iTrader: (1)

yeah, my car has a little bit of a hiccup at idle, rpms dont dive around much. and its only at idle. im assuming i just need a tune up, but will be replacing my spark plugs..whats the gap for the sk20R11??

GSteg

iTrader: (15)

Gap is preset at 0.044". No need to touch them, but it would be nice to check them just in case.

PHML

iTrader: (33)

Oh...FYI...torque spark plugs to 13 ft/lbs...thats what it says in the service manual.

OK...so for my 2001 GS300....I need the denso iridium long life plugs (3353) SK16R-P11? where can I get them at a great price?