Contrary to the opinion on the list, I saw a great performance increase
when I installed the plugs. The truck idles smoother, and the pinging I
experienced at full throttle is gone, so I can now use 87 octane without
the pinging. Bosche guarantees "you will feel the difference or we'll
buy them back". So, try them. If you hate em, call bosche for a
refund. Later,
Ryan
97, CC, 5.2L, 4x2
Johnny Z wrote:
>
> I didn't really read all of the posts on the Platinum +4 plugs. Is the
> final verdict bad?? I don't have any other mods to my engine so I
> figured why not the +4's. I heard conflicting stories with regards to
> Champion Truck Plugs and Split Fires. Bring me up to speed.
>
> Johnny Z
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