Quote:
Originally Posted by 06mustanggt
Interesting and still unsure of it being needed or not. Looked at the threads Roushinator listed and most of them are at least 2 or more years old, so not much help for the 07 and 08 models. Spoke to my tuner this week and he says it would be advisable if I was running more more boost, but with what the 427's are running, even with the upgraded pulley, he says its not really needed.
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The principles are the same for any year model.