Description

Coming September of 2025. Pre-order and save $100.

Photo is a sample of pre-production. Finished product will be red anodized.

Exact fit JB Performance direct fit replacement clockwise billet F1A-94 trim style impeller.  The blades must curve in a clockwise pattern.

Direct Fit for the following ProCharger Superchargers:

• ProCharge F1A-94.

Comparisons:

F1A-94 stock impeller:

• 1,625 CFM.
• 1,300 HP.
• 74,000 maximum RPM.
• Balanced by grinding, clipping, sanding, drilling.
• Weight: 18 ounces.

JB Performance billet impeller:

• 1,xxx CFM.
• 1,xxx HP
• 7xxxx maximum RPM.
• Upgraded aluminum cone section- no plastic cone to fall out of place and become hung up in the blades, damaging your supercharger and your engine.
• Direct fit with no machine work.
• Narrower center section.
• A2000 Alcoa Aluminum for stronger blade support.
• Thinner blade design to allow more air to pass through same pocket size.
• 10mm larger exducer diameter by using patented flared tip.
• Digitally designed and tested by a company that specializes in improved air flow designs.
• CNC balanced. by removing specific material with a cutting tool in the precise area.
• Crack checked with X-ray technology.
• Anodized red and JB Performance etched logo for easy verification. Helps avoid copy-cats on the market.
• Weight: xx ounces.
• 3 year warranty against blade failure when installed by JB Performance with a full rebuild. requires the supercharger RPM to not be exceeded as published here.

Want to save even more? Trade in your un-damaged F1A trim impeller for $150 at any time.