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Air Filter for 2009 Cadillac STS

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K&N - Performance Air Filters

K&N – PERFORMANCE AIR FILTERS

When most people think of top-of-the-line performance air filters, K&N comes to mind. That’s probably because in addition to being regarded as the world’s finest filtration company, K&N performance air filters will last as long as your vehicle’s engine does and are a 100% legal factory replacement that can boost your horsepower output by as much as 4 horsepower. Started in 1969, K&N has garnered a reputation for engineering the world’s finest filtration products for cars, trucks, SUVs, motorcycles, race vehicles, commercial vehicles and anything in-between.

  • Replaces existing air filter
  • Boosts cold air flow which translates to more horsepower
  • Backed by K&N’s million mile warranty
  • Custom fit to your vehicle’s specifications
  • Cotton-gauze design features as many as 6 layers of filtration
  • The world’s best performance air filter
  • Only need to clean every 50,000 miles
  • All filters are washable, reusable and come already oiled by K&N
  • 50-state legal and ‘green’ design
  • Increases horsepower (up to 4 hp) and fuel efficiency
  • One air filter will last as long as one vehicle’s engine
  • Maintain with K&N Recharger kit - (not included)
  • Made in America
K&N Air Filter, Cotton Gauze, Oiled, Direct Fit
$52.99 List Price $83.01 Save $30.02 Availability: In Stock
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  • SKU#: K33332356
  • Quantity Sold: Sold individually
  • Recommended Use: Performance
  • Anticipated Ship Out Time: Same day - 1 business day
  • Filtration Efficiency Rating: 96 to 99%
  • Warranty: Million-mile K&N limited warranty
Fits the following 2009 Cadillac STS submodels:
  • 8 Cyl 4.6L | Base, Platinum
  • 6 Cyl 3.6L | Base, Platinum
Rating: (see review/s)

"I have use K&N air cleaner elements for over 15 years. Every tine I get a new car or truck I install the K&N air cleaner element in it." posted by: on November 13, 2008

K&N Air Filter, Cotton Gauze, Oiled, Direct Fit
$61.99 List Price $96.18 Save $34.19 Availability: In Stock
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  • SKU#: K33E1995
  • Quantity Sold: Sold individually
  • Recommended Use: Performance
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: Million-mile K&N limited warranty
Fits the following 2009 Cadillac STS submodels:
  • 8 Cyl 4.4L | V

Fram Extra Guard Air Filter

As the first air filter to utilize two integral filtering elements, the Fram Extra Guard air filter protects the engine and provides more airflow for improved performance. It also helps prevent damaging particles from entering the engine and causing increased engine wear. It lasts 50 percent longer and stops 50 percent more dirt than any other brand, making it the perfect choice for every vehicle application.
Fram Air Filter, Fram Extra Guard, Paper, Disposable
$25.56 List Price $30.16 Save $4.60 Availability: In Stock
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  • SKU#: FFCA9953
  • Product Fit: Direct fit
  • Quantity Sold: Sold individually
  • Recommended Use: OE Replacement
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: Fram limited warranty
Fits the following 2009 Cadillac STS submodels:
  • 8 Cyl 4.6L | Base, Platinum
  • 6 Cyl 3.6L | Base, Platinum

aFe Power - MagnumFLOW Pro 5R Air Filters

AFE POWER – MAGNUMFLOW PRO 5R AIR FILTERS

When most people think of top-of-the-line performance air filters, aFe Power comes to mind. That’s probably because in addition to being regarded as one of the world’s best filtration companies, aFe MagnumFLOW Pro 5R air filters will last longer than any stock paper filter out there and are a 100% legal factory replacement that can boost your horsepower output. Started in 1999, aFe Power is known for its innovative design and manufacturing standards with regard to filters and cold air intakes for most road-going vehicles.

  • Replaces existing air filter with perfect fitment
  • Backed by aFe’s limited lifetime warranty
  • Synthetic design features 5 layers and 98.6% of filtration
  • All filters are washable, reusable and are oil-free
  • 50-state legal and ‘green’ design
  • Increases horsepower and fuel efficiency
  • Longer cleaning intervals than paper filters
  • Synthetic filter fiber compound and built-in urethane seal means a nice tight seal
AFE Air Filter, AFe Power MagnumFLOW Pro 5R, Cotton Gauze, Oiled
See Special Price List Price $65.94
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  • SKU#: A153010059
  • Color/Finish: Blue
  • Product Fit: Direct fit
  • Quantity Sold: Sold individually
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Filtration Efficiency Rating: 98.60%
  • Warranty: Lifetime AFE limited warranty
see more Fits the following 2009 Cadillac STS submodels:
  • 6 Cyl 3.6L | Base, Platinum
  • 8 Cyl 4.6L | Base, Platinum
  • 8 Cyl 4.4L | V
Rating: (see review/s)

"This REALLY made a difference in acceleration and performance, EXTREME difference, went from here to LR UAMS hospital, to visit my son 48 miles from there and back home to here Texarkana TX 422 miles about 12 gallons fuel ,, I cant believe the difference , its like this almost ALL the time now, 85% more airflow has superior fule and performance plusus I would have never thought possible if it hadnt just happenned in my 2002 OLDS Intrigue , EXCELLENT filter and just as easy as ALL the others to install, for the price IM VERY VERY satisfied!!! A recharge kit is all thats needed and the lifetime filter will outlast ANY other normal filter and outperform them too." posted by: redcloud157 on July 16, 2009

Special Price from

When a manufacturer implements a Minimum Advertised Price (MAP) policy, they create limits on the list price that retailers are allowed to advertise their products for.

In line with our efforts to continually provide the lowest possible price, we've made it easier for you to inquire about our Exclusive Pricing on these MAP items.

AFE Air Filter, aFe Power MagnumFLOW Pro 5R, Cotton gauze, Oiled

  • List Price: $65.94
  • You Save: $14.68
  • Shipping: FREE
  • Our Price: $51.26
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aFe Power - MagnumFLOW Pro Dry S Air Filters

AFE – MAGNUMFLOW PRO DRY S AIR FILTERS

When most people think of top-of-the-line performance air filters, aFe Power comes to mind. That’s probably because in addition to being regarded as one of the world’s best filtration companies, aFe MagnumFLOW Pro Dry S air filters will last longer than any stock paper filter out there and are a 100% legal factory replacement that can boost your horsepower output. Started in 1999, aFe Power is known for its innovative design and manufacturing standards with regard to filters and cold air intakes for most road-going vehicles.

  • Replaces existing air filter with perfect fitment
  • Backed by aFe’s limited lifetime warranty
  • Synthetic design features 5 layers and 99.2% of filtration
  • All filters are washable, reusable and are oil-free
  • 50-state legal and ‘green’ design
  • Increases horsepower and fuel efficiency
  • Longer cleaning intervals than paper filters
  • Synthetic filter fiber compound and built-in urethane seal means a nice tight seal
AFE Air Filter, AFe Power MagnumFLOW Pro Dry S, Synthetic, Dry
See Special Price List Price $65.94
  • Free Ground Shipping
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  • SKU#: A153110059
  • Color/Finish: Blue
  • Product Fit: Direct fit
  • Quantity Sold: Sold individually
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Warranty: Lifetime AFE limited warranty
see more Fits the following 2009 Cadillac STS submodels:
  • 6 Cyl 3.6L | Base, Platinum
  • 8 Cyl 4.6L | Base, Platinum
  • 8 Cyl 4.4L | V

Special Price from

When a manufacturer implements a Minimum Advertised Price (MAP) policy, they create limits on the list price that retailers are allowed to advertise their products for.

In line with our efforts to continually provide the lowest possible price, we've made it easier for you to inquire about our Exclusive Pricing on these MAP items.

AFE Air Filter, aFe Power MagnumFLOW Pro Dry S, Synthetic, Dry

  • List Price: $65.94
  • You Save: $14.68
  • Shipping: FREE
  • Our Price: $51.26
  • Low Price Guarantee

Hastings OE replacement Air Filter

Hastings Premium air filter is built to meet or exceed OE specifications and ensures to provide protection that the engine needs. It is proven to separate and stabilize the pleated media on heavy-duty air filters. Hastings air filter features permapleat construction that forms dividers between pleats and prevents bunching for insured uniform air flow. It provides a continuous bead of adhesive around the circumference of a filter's metal wrap, either inner or outer, to lock the pleat tips in place and prevent movement.
Hastings Air Filter, Paper, Disposable, Direct Fit
$23.30 List Price $27.49 Save $4.19 Availability: In Stock
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  • SKU#: HAAF1227
  • Quantity Sold: Sold individually
  • Recommended Use: OE Replacement
  • Anticipated Ship Out Time: Same day - 1 business day
Fits the following 2009 Cadillac STS submodels:
  • 8 Cyl 4.6L | Base, Platinum
  • 6 Cyl 3.6L | Base, Platinum