Spectre's intake couplers and sleeves for GM mass air flow sensors are designed to adapt boot-in style GM mass air flow sensors to a 4 inch intake system. We offer 3-5/8 inch to 4 inch sleeves as well as 3-7/8 inch to 4 inch sleeves.
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 kit includes a 3-5/8 inch to 4 inch sleeve as well as two 3-7/8 inch to 4 inch sleeves.
- Designed For Horsepower And Torque Increase
- Easy To Install Performance
- High Quality Polished Aluminum Tubes
