1. Durable and reliable.
2. You can also use them for fuel and oil requirements with tape.
3. Billet vacuum manifold kit is a great add-on for tuner that require additional vacuum sources. It has 6 ports, and also comes with plug if tuner don not require that many ports. This will ease up all the trouble for splitting up lines and making extra ports if needed.
4. Made of high quality aluminum alloy.The surface is anodized for a long lasting, brilliant finish.
5. Includes six 1/8 inch vacuum ports.Includes two 3/8 inch inlet-outlet fittings. With 4 block-off plugs. With 1 inlet-outlet block-off plug. With mounting hardware.