Any ZL1 mods for HP that do not need a Tune
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06-24-2012, 10:52 PM
Drives: ZL1, Genesis, Grand Cherokee
Join Date: Feb 2012
I put just a K&N filter in and made a small difference. I'm waiting for the CAI with no tune. Lingenfelter said +20hp over the phone but I want to see the results before I pay $600 for it.
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