Quote:
Originally Posted by Osiris
I didn't have to upgrade my maf's for the cogs to work. I'm running around 11.7psi. but i think if you are trying to go over 12psi you may have to.
Either way, you have to get a re-tune after installing the cogs, i don't think that was mentioned yet in this thread.
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I maxed my Maf's out @ 6600 rpms with the cogs and impeller . If I remember correctly didn't you just do the cog pulleys by them self and not the impeller ?