4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Zex Power Tune Plugs = lesson learned

Old 06-21-2010, 09:07 PM
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TheDarkKnight
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Default Zex Power Tune Plugs = lesson learned

I thought I'd give em a try.....
I might as well have rolled down my window driving down the highway and pitched 50 bucks out!!! Would have got the same benefit and the car wouldn't run like CRAP! I puttin' my dang NGK's back in...

Has ANYONE had a good experience with these things? It misses pretty bad with these things. Is it just me?
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