Air Cleaner 2.5L California Emissions Opt NU6 Fits 15-19 IMPALA 4876871

IMPALA 15 VIN 1 (4th digit, New Style), 2.5L (VIN L, 8th digit, opt LKW), California emissions, opt NU6, w/o port for secondary air injection. IMPALA 16 VIN 1 (4th digit, New Style), 2.5L (VIN A, 8th digit, opt LCV), California emissions, opt NU6.