Description

Exact fit JB Performance™ direct fit replacement counter-clockwise billet impeller.  The blades must curve in a counter-clockwise pattern.

Direct fit for the following ASA Kompressor TM12 Superchargers and TM12 units mounted to BMW E46.

Comparisons:

TM 12 stock cast impeller:

• Balanced by grinding, clipping, sanding, drilling.
• Weight: 5.0 ounces.

JB Performance™ Billet impeller:

• More total surface area for air to pass through, allowing up to 15% more air to flow through the impeller each rotation.
• 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 outer diameter.
• 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.
• Weight: 4.6 ounces.