K&N parts matching Cadillac A3178C air filter

The Cadillac A3178C air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Cadillac air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
J. Brandt, Illinois
I have used many different K & N products (6 cars, 2 boat, & 2 wave runners) all with favorable results. I know this new air filter on my Cadillac ATS with 3.6L will add to performance and gas mileage but I would like to see better data showing HP and mileage increases on the 3.6 engine. Thanks, I will continue to purchase K & N products.
Dale Smith, Redondo Beach, Caliifornia
The last air cleaner that I will have to buy and I can clean it myself. Also gives me more power and better gas mileage.
Victor Rosriguez, Oregon
Filter fit great and a great product
33-2496 K&N 33-2496 Replacement Air Filter
List Price: $88.89
Your Price: $56.99