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Discussion Starter · #1 ·
As some of you know my Z is getting a heads & cam upgrade the question is: should I get the underdrive pulley also? They claim around 5-10 rwhp for an additional $500.
Any help with this decision is appreciated!

2001 Z06 Torch Red/Blk
DRM long tube headers, B&B PRT Quad Ovals, MTI ram air, BPP air duct, Xtreme rolled exhaust plate, B&M ripper with Momo Combat/red, MSD wires, Splitfire plugs, CAGS.
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