Mantis-Manometer BMW S14 4 Port ITB Air Bypass Adjustment Tool-Includes Dial Indicator Tool

Like it's bigger brother, this four port manometer is used to finely tune the idle and off idle performance of the 2.0-2.5L BMW S14 E30 M3. The item comes fully assembled with 10 feet of vacuum tubing, high temperature silicone ends, factory calibrated to 8.5inHg, vacuum tested, and filled with oil. It solves the poor factory tuning process by sampling all four ports at the same time. With the provided detailed laminated instructions an enthusiast can quickly set the bypass ports to the factory specification and enjoy a smooth running engine.

See product demonstration: https://youtu.be/gKquThe88AQ

Compatible with the following engines:
- S14B20
- S14B23
- S14B23
- S14B25

The BMW factory process relies on separately testing each of the four ITB bypass ports and calculating average port vacuum. This process introduces errors as the idle speed fluctuates during testing and results in a rough off idle condition, highway surging and poor drive-ability below 2,000 RPM.

The Mantis Manometer was enthusiast developed and tested across a broad range of S38s over several years, first as a loaner item, then shop only purchase. Hands on owners, shops and engineering feedback have improved this product to the point that it is ready for limited production and general sale.

See OPTION to purchase the manometer without the dial indicator and stand off tool.

Tracking information will be provided upon receipt of payment. If you have any questions feel free to contact me. Thank you and enjoy your M!

Patents are pending.