2008 Ford Focus Air Filters

K&N performance High-Flow Air Filters are engineered to improve engine performance. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle or outdoor power small engine. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world┐s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

Product Features:

• ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
• RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
• 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
• CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (based on the average miles driven per year of 15,000 miles)
• ULTIMATE LONGEVITY: No-hassle lifetime warranty on stock replacement K&N air filters- limitations apply
• EASY INSTALLATION: K&N Air Filters are pre-treated and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
• ECO-FRIENDLY: Using a washable, reusable engine air filter helps reduce replacement air filter waste- a K&N air filter is designed to last longer than 10 or more disposable filters
• MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability

Carquest Standard engine air filters are designed to remove airborne contaminants and optimize engine performance in all driving conditions. Each air filter features cured filter media that increases tensile strength, allowing the filter to maintain high-pressure requirements without collapse. Carquest Standard air filters use a polyurethane construction that provides higher tear strength and more structural support. Our Carquest Standard air filters meet original equipment (O.E.) standards and fulfill the requirements for maintaining a new vehicle warranty.

Carquest Premium engine air filters are designed to meet OE fit, form and function for optimal filtration and engine protection. High-quality paper, enhanced bonding, and reinforced metal screen backing give Carquest Premium air filters the added strength and durability that modern engines demand. Built to meet or exceed original equipment standards, Carquest Premium air filters provide exceptional engine protection and optimal performance in all driving conditions.

Motorcraft Original Equipment Air Filters are designed, engineered and recommended by Ford Motor Company.

Product Features:

• Tight polyurethane seals are designed to be leak proof
• Chemically treated to withstand damage from oil and moisture
• Excellent dirt-holding properties with a 98.5% efficiency standard

K&N performance High-Flow Air Filters are engineered to improve engine performance. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world┐s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

Product Features:

• ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
• RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
• 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
• CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (based on the average miles driven per year of 15,000 miles)
• ULTIMATE LONGEVITY: No-hassle lifetime warranty on stock replacement K&N air filters- limitations apply
• EASY INSTALLATION: K&N Air Filters are pre-treated and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
• ECO-FRIENDLY: Using a washable, reusable engine air filter helps reduce replacement air filter waste- a K&N air filter is designed to last longer than 10 or more disposable filters
• MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability

Carquest Standard engine air filters are designed to remove airborne contaminants and optimize engine performance in all driving conditions. Each air filter features cured filter media that increases tensile strength, allowing the filter to maintain high-pressure requirements without collapse. Carquest Standard air filters use a polyurethane construction that provides higher tear strength and more structural support. Our Carquest Standard air filters meet original equipment (O.E.) standards and fulfill the requirements for maintaining a new vehicle warranty.

Constructed with 100-percent polyurethane on top and bottom, this non-oiled OE replacement filter provides years of hassle free service. Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter.

Product Features:

• Outflows Stock Paper Filters For Improved Horsepower and Torque
• 100% Polyurethane Frame On All Sides For Extra Long Filter Life
• Washable And Reusable For Multiple Cleaning Cycles
• Progressive Bump Seal Design For A Perfect Fit

Constructed with 100-percent polyurethane boxed frame, this non-oiled OE replacement filter provides years of hassle free service. Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter.

Product Features:

• Outflows Stock Paper Filters For Improved Horsepower and Torque
• 100% Polyurethane Frame On All Sides For Extra Long Filter Life
• Washable And Reusable For Multiple Cleaning Cycles
• Progressive Bump Seal Design For A Perfect Fit

Carquest Premium engine air filters are designed to meet OE fit, form and function for optimal filtration and engine protection. High-quality paper, enhanced bonding, and reinforced metal screen backing give Carquest Premium air filters the added strength and durability that modern engines demand. Built to meet or exceed original equipment standards, Carquest Premium air filters provide exceptional engine protection and optimal performance in all driving conditions.

Carquest Premium engine air filters are designed to meet OE fit, form and function for optimal filtration and engine protection. High-quality paper, enhanced bonding, and reinforced metal screen backing give Carquest Premium air filters the added strength and durability that modern engines demand. Built to meet or exceed original equipment standards, Carquest Premium air filters provide exceptional engine protection and optimal performance in all driving conditions.

Constructed with 100-percent polyurethane on top and bottom, this high flow, oiled OE replacement performance filter will outflow the stock filter for improved horsepower and torque. Five layers of progressively finer mesh cotton gauze media provide maximum airflow for best performance results. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter.

Product Features:

• High Flow For Increased Performance
• Progressive 5 Layer Cotton Gauze Material
• Deep Cotton Pleats for Increased Flow
• Progressive Bump Seal For Leak-Free Seal

Replacing an air filter every 12 months or 12,000 miles can have a significant impact on engine performance and efficiency. PurolatorONE Air Filters trap up to 99% of dirt, dust, soot and other debris, helping to protect your engine from damage. A new air filter may also help prevent engine wear, improve fuel efficiency and can even improve acceleration by up to 11% (U.S. DOE study). PurolatorONE Air Filters are widely available for most passenger cars and light trucks on the road today. Changing your air filter regularly is an easy way to keep your engine running at peak performance.

Product Features:

• Multi-fiber, high dirt trapping media
• Traps up to 99% of dirt, soot and other damaging debris (based on ISO 5011 on A24278)
• Replace every 12 months or 12,000 miles (refer to your owners manual for recommended maintenance schedules for your vehicle)
• A new air filter can improve acceleration by up to 11% (U.S. DOE study)
• Helps prevent engine wear

Carquest Standard engine air filters are designed to remove airborne contaminants and optimize engine performance in all driving conditions. Each air filter features cured filter media that increases tensile strength, allowing the filter to maintain high-pressure requirements without collapse. Carquest Standard air filters use a polyurethane construction that provides higher tear strength and more structural support. Our Carquest Standard air filters meet original equipment (O.E.) standards and fulfill the requirements for maintaining a new vehicle warranty.

Replacing an air filter every 12 months or 12,000 miles can have a significant impact on engine performance and efficiency. PurolatorONE┐ Air Filters trap up to 99% of dirt, dust, soot and other debris, helping to protect your engine from damage. A new air filter may also help prevent engine wear, improve fuel efficiency and can even improve acceleration by up to 11% (U.S. DOE study). PurolatorONE Air Filters are widely available for most passenger cars and light trucks on the road today. Changing your air filter regularly is an easy way to keep your engine running at peak performance. Full synthetic or highly embossed media for superior strength and dirt holding capacity; Blocks up to 99% of damaging dirt, soot and debris from entering your engine. Optimizes engine airflow with precision fit polyurethane framingHelps improve acceleration and boost engine efficiency. Employs steel grid backing, ridge supports or polyamide high temperature glue beads to provide superior strength and stability. Meets or exceeds OE specifications; Trusted OE supplier

K&N Universal Clamp-on Air Filters are manufactured for a wide variety of applications and unique filtration needs. K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow up to 50%. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. These versatile filters are constructed with ultra-strong molded pliable rubber flanges that absorb vibration and allow for secure attachment. Available in round, tapered (cone-style), and oval designs, K&N offers thousands of clamp-on filters in a multitude of shapes and sizes that cater to many precise applications. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

Product Features:

• ENGINEERED POWER: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration. Clogged or dirty air filters can reduce your vehicle’s acceleration by up to 10%.
• EASY INSTALLATION: Pre-oiled and built with simple clamp-on design. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains.
• SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters.
• ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters.
• WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants.
• LOW-MAINTENANCE DESIGN: 50,000 miles before your first cleaning under normal highway driving conditions.
• HIGH QUALITY: Made in America.
• RACE TESTED: The Official Air Filter of NASCAR. Trusted on the racetrack – made for your vehicle.

Carquest Premium engine air filters are designed to meet OE fit, form and function for optimal filtration and engine protection. High-quality paper, enhanced bonding, and reinforced metal screen backing give Carquest Premium air filters the added strength and durability that modern engines demand. Built to meet or exceed original equipment standards, Carquest Premium air filters provide exceptional engine protection and optimal performance in all driving conditions.