Yes, the 3922's are two ranges colder than factory and the 3923's are one range
colder. Both use a standard tip rather than the "Special Power Tip" as on the
OEM plugs (which are the equivalent to a Autolite 5224).
- Bernd
> Hey I just went to SpeedTweaks and I saw you have two part #'s, the 3923 and
> 3922. Are the 3922's colder then the 3923's and what application do you
> recommend them for? Thanks
> Sam South
> 95 Dak, 5.9L,3.90 LSD,5-speed
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