NGK IRIDIUM IX SPARK PLUGS
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Burning Brakes
Joined: Jun 2002
Posts: 768
Likes: 129
From: Vacaville Ca
NGK IRIDIUM IX SPARK PLUGS
Has anyone tried the NGK IRIDIUM IX SPARK PLUGS in their C5's and if so did you feel any performance gain ?? Are they worth the cost ? They retail for about $ 15.00 each. They claim that they out perform all the spark plugs that are out on the market and will last for over 80K miles.... :cheers:
Drifting
Joined: Jul 2002
Posts: 1,613
Likes: 0
From: Spring Tx
Re: NGK IRIDIUM IX SPARK PLUGS (rhoeven)
I received mine Friday,will have them in this week. One forum member dynoed 30more hp with only the addition of plugs and an underdrive pulley.Most likely will be better for SC or nitrous applications....
Burning Brakes
Joined: Nov 1999
Posts: 1,045
Likes: 0
From: Naperville, IL. USA
Re: NGK IRIDIUM IX SPARK PLUGS (Oskee)
I just put them in last week along w/ my H&C package and other goodies. I would doubt a whole lot of increase by just the plugs.
OBTW, I got mine from NAPA at something like $6 each. The guy at the counter cut me a deal b/c he's a car guy! :yesnod:
I think they normally sell them for like $8/each. :chevy
OBTW, I got mine from NAPA at something like $6 each. The guy at the counter cut me a deal b/c he's a car guy! :yesnod:
I think they normally sell them for like $8/each. :chevy
