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Engine Modifications?
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11-15-2005, 02:13 AM
WPBGUY
Join Date: Sep 2005
Location: West Palm Beach, FL
Posts: 141
I have been reading alot about "Throttle body spacers", "Air intake kits" and other things.
#1) Do they really work?
#2) If so, Why don't GM make them like that, since it increqases HP and Milage?
#3) Do these modifications affect the warranty?
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