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ScreaminMystic
10-11-2007, 09:10 AM
Denso IT24 Iridium Spark Plugs

http://www.lethalperformance.com/cached_images/IT22_MED.jpg

Was thinking about those or these

NGK TR7IX Iridium Spark Plugs

http://www.lethalperformance.com/cached_images/TR7IX_MED.jpg

wanted to get some feed back from a few of you guys. Thanks

red04svtcobra
10-11-2007, 09:26 AM
I have heard some good things about these NGK TR7IX Iridium Spark Plugs. I have heard that alot of people that have had problems with the TR6's of having a rough idle had gone to these and cured the idle. I might end up trying me a set on day.

Twice Bitten
10-11-2007, 11:24 AM
Use NGK, they make their on ceramic. :thumbsup:

97CasperCobra
10-11-2007, 11:54 AM
my g/f's Freelander takes those and the dealership wants to charge $13.06 per plug!!!!! Talk about highway robbery!!!! :edmond:

jimmysidecarr
10-12-2007, 04:23 PM
Use NGK, they make their on ceramic. :thumbsup:


CORRECT!!! The Densos have a bad track record in our cars... The porcelin is very sensitive to cracking and shattering even under mild detonation events.(pinging)

The NGK is the superior choice!!! I run the NGK Iridiums in the 6 heat range @ at 15 PSI max.

If you are running stock boost and have less than 30k miles I would not change your plugs at all!!! And I most def would not go to a different heat range.

The Motorcraft Platinums I took out @ 16K looked BRAND NEW!!!

Seriously I would not change them at all on a stock car... and even if a boost increase is done I would hold off until you know you need a colder heat range.

The stock plugs ARE FAR FROM JUNK!!! and will stay effective for a rediculous amount of miles!!!

If you are going to pulley up... go NGK!