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How smart is an underdrive pully? i hear claims of 10 Hp... but isnt it dangerouse to run all of your assesories slower... or doenst a little slower matter?
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91\' Mazda miata.
92\' Lumina (sold) -
I've had mine on for about 4 months now. Not a problem with it.
Wish I could spend another $100 and get the same gain.
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what company sells an underdrive pully for a 99-02 3.4L?2002 Pontiac GrandAm GT1
3400 v6
TOG headers
RSM 62MM T-body
FFP underdrive pulley
GRANATELLI MAF
Ported upper intake
MSD DIS 4 ignition box
MSD Wires and coils (pending)
Venom high flow fuel pump (pending)Comment
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i didnt notice a change (good or bad) when i did my pulley3.4L camaro some goodiesComment
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