Spectre 990003 MAF Sensor Adapter Sleeve, 4 Inch Boots on 3-5/8 OD GM

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.

• 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