3.875

  1. LethalFabian

    Our 3.8L Whipple supercharger has arrived here at Lethal Performance for our GT500!

    The FIRST 3.8L Whipple Supercharger for the 2020+ Shelby GT500 is HERE. We will be installing it with a full Lethal Performance/DivisionX Triple Pump Fuel System and Lund Racing will be tuning it. If you have any questions or concerns feel free to reach out to us at 561-753-8105
  2. STTOCK

    WTB: Whipple 3.4 Pulleys 3.875" and 4.0"

    Looking for Whipple 4.0" and 3.875" pulleys for a Whipple 2.9, 3.4, and 4.0. I have too much boost with my 10% OD and I don't feel like removing it for the stock one. Thanks

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