Spectre’s intake couplers and sleeves for GM mass air flow sensors are designed to adapt the majority of boot-in style GM mass air flow sensors to a 4 inch intake system. This 3-5/8 inch to 4 inch sleeve is engineered for optimum fit and function.
- Designed for GM boot-in mass air flow sensor adapters
- Includes one 3-5/8 inch to 4 inch sleeve
- Adapts the majority of GM boot-in mass air flow sensors to 4 inch intake systems
- Helpful for applications requiring an additional 3-5/8 inch sleeve
