A friend has a 2.7 pulley he's selling me and i wanted to know if there's really any major boost difference versus a 2.6? Do i absolutely HAVE to have the idler arm for the pulley swap? I know i'll need the plugs changed since i already have the jlt and tune installed. BTW, the pulley i think is an slp but not 100%
Any major differences?
- Thread starter luvgun74
- Start date
i don't know if you will need the idler but it can't hurt though and will probably help for sure, also there will be about a .5 psi difference between the two, not really noticeable but might be when a similar car with your mods that has a 2.6 beats you by a fender or so in a roll race.
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