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Press-On Supercharger Pulleys


  • Pontiac Grand Prix GTP or 06+ GT
  • Buick Regal GS
  • Pontiac Bonneville SSEi
  • 04+ Impala SS
  • 04+ Monte Carlo SS

Pulley recommendations:

  • 3.5 pulley for 01-03 GTP/GS with ZZP PCM, Thermostat, colder plugs, bolt in downpipe, and a cold air intake.
  • 3.5" for 2004+ Grand Prix recommended for cars with 1.9 rockers, Thermostat, colder plugs, some exhaust work, and a cold air intake.
  • 3.4" for 97-00 GTP/GS with ZZP PCM, Thermostat, colder plugs, bolt in downpipe, and a cold air intake.
  • 3.3" pulley requires a small cam or headers or any SS intercooler
  • 3.2" pulley requires a XP cam or a SS intercooler with 1.9 rockers.
  • 3.0" pulley requires larger injectors and a full size intercooler

Running a pulley smaller than we recommend will make performance suffer, you will have KR. "KR" is "Knock Retard" which is spark knock. KR reduces full throttle timing reducing HP.

Cars with open cone intakes (also known as "Hot air intakes") should run one size larger pulley.

All recommendations assume 92 octane or higher.

How to begin mods to your 3800 car, click HERE:

Customer Reviews
4.8 Based on 33 Reviews
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Filter Reviews:
Skylar D.
Canada Canada

Exactly what I expected

Aaron B.
United States United States
Worth it.

Only complaint is it took 3,000,000 ft lbs to install it.

United States United States
3.25 M90 Pulley

The item worked excellent and looks very nice.

ZZPerformance Press-On Supercharger Pulleys Review
United States United States

Was surprised on the power gain with the 3.4 pulley, car will blow tires off on a 30 roll !!!!!!!!

Aaron H.
Very satisfied

I purchased the press on 3.5 pulley because I don’t plan to change it later, The quality is great and the shipping was fast. The most important thing is to use the right tools to remove and replace. I had a 60 ton press but get that pulley puller if you don’t have a big press. Note the size difference between the 3.8 and 3.5