Maintaining and improving your engine performance requires 3 components: Spark, fuel and air. The easiest way to get more performance out of your engine is by helping it breathe better with some simple bolt-ons like air filters and exhausts. A clean performance air filter or cold air intake system can improve the responsiveness, fuel efficiency and also peak horsepower and torque of your car or truck. Vehicle air filters come in different configurations and price points - so research and talk with an air filter specialist to find one that suits your needs. Modern truck and car air filters come with dozens of accessories to improve and maintain your air filter - read on below for in-depth review of car and truck air filters. Check out our Air Filter Car Buying Guide
Not sure which 2005 Cadillac CTS Air Filters are right for you? We have over 14810 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Recently purchased a K&N stock replacement air filter for my 2005 Cadillac CTS-V. It arrived virtually ready to install. All I had to do was grease the sealing surfaces (grease supplied). I immediately noticed a small increase in the smoothness of the engine. K&N claims a small HP increase, but I did not notice any increase. Have run 2 full tanks with the new filter and noticed virtually no improvement in fuel economy (maybe a +0.1 MPG increase). None of this is meant to detract from my opinion of the filter. It installed as tight as factory OEM and with K&N's million mile warranty, it's nice to know I won't have to buy another filter again. Please note though that regular maintanance is requried (every ~12K miles the filter requires oiling). Eventually (+5 years) I will switch out the entire intake system with a full K&N cold air set-up. Until then, this filter is a good compromise." —Valerie C from Zelienople, PA bought a K&N Air Filters for a 2005 Cadillac CTS.
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