3800 Modular Pulley System

Pulleys & Belts - 3800 Modular Pulley System

3800 Modular Pulley System

68 reviews
Pulley Size
Regular price $99.98
  • In stock, ready to ship
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The pulley system includes HUB, pulley of your choice, 5 stainless socket cap button screws, and one barbed retainer to replace the breather bolt.

After removing the stock pulley our steel hub presses on using the same pulley tool used to remove the factory pulley. No jaw style puller should be used to remove a supercharger pulley. If it is used, it will destroy the pulley and possibly damage the supercharger.

Once installed, the hub allows quick changing of pulleys with an Allen wrench. The ZZP MPS allows you to change between pulleys depending on conditions - use one pulley for street use and a smaller for the track or when running high octane fuel. A modular pulley system is a must for those planning to continue to modify their car in the future.

Our pulleys come with 8 ribs on them, but a 6 rib belt will still work completely fine.


  • 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, Tstat, colder plugs, bolt in downpipe, and a cold air intake.
  • 3.5" for 2004+ Grand Prix recommended for cars with 1.9 rockers, Tstat, colder plugs, some exhaust work, and a cold air intake.
  • 3.4" for 97-00 GTP/GS with ZZP PCM, Tstat, 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
  • 2.8" pulley requires a cam, intercooler, and headers.
  • anything smaller than 2.8" pulley and you should email us your specific mod list and octane.

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

Bolt torque spec is 72 inch pounds.

Customer Reviews
4.9 Based on 68 Reviews
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Chris V.
United States United States

04 Impala SS super charger rebuild

Everything worked out great on the snout rebuild for our 2004 3800 Impala SS. From the pulley puller, to the new bearings,the module pulley system, you guys are the best!! The car is back to better than new! Thank you all.

ZZPerformance 3800 Modular Pulley System Review
Matthew E.
United States United States

Worked great

More hp for sure. However in Arizonas hot climate I'm getting too much kr from it. I'm getting the intercooler next.

Cody S.
United States United States

Quality Control

Install was easy, removal of stock pulley not so much . But zzp delivered as always.

Seth D.
United States United States

Start small with this setup

Great product. Definitely makes it easier to swap pulley sizes. I went with the 3.6 for the sake of KR on a mild street built Comp G. Order the right size for your car and don't forget about a tune and ZZP'S pulley puller. It's child's play with their puller. They have a video on YouTube step by step.

ZZPerformance 3800 Modular Pulley System Review
Christopher B.
United States United States

Great pulley

After purchasing a press on pulley and experiencing issues with the belt squealing this was clearly a superior product and fixed that issue. Was a lot easier to put on with the help of vise grips clamped on and wedged so they wouldn't move. Otherwise it kept spinning on me and therefore stopping me from pressing it on. Another great product from ZZP.

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