Spectre's Universal Mass Air Flow Sensor Adapter allows an air filter with a 4 inch inlet or a 4 inch intake tube with coupler to be mounted directly to the mass air flow sensor. This adapter fits Chrysler/Dodge/Mitsubishi mass air flow sensor tubes with 4 3/8 inch by 2 3/8 inch bolt hole dimensions (won't fit 1988-1994 Eclipse). Featuring an aluminum body with ABS components, this adapter kit may require drilling additional holes for various applications.