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Ford Focus Air Filter
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K&N Air Filter
App: 2008 Ford Focus
Brand: K&N
Part #: 33-2401
Notes: K&N HIGH FLOW AIR FILTER -- Adds 1-4 h.p. power gain; 96 percent to 99 percent filtration efficiency; 1 in. height, 8.5 in. outside length, 7.813 in. outside width; Unique style; This Air Filter is designed to increase horsepower and acceleration while providing excellent filtration; It is custom designed to fit into an existing factory air box and features a drop-in design which means adding performance is simple; Provides high air flow with excellent filtration; Economical and environmental friendly; Works with OEM vehicle electronics; Will lasts the life of your vehicle; Washable and reusable; Lasts up to 50,000 miles before cleaning is required depending on drive condition; 50-state legal; With K&N's limited million mile warranty.
Type: Direct OE replacement
App: 2008 Ford Focus
Brand: K&N
Part #: 33-2401
Notes: K&N HIGH FLOW AIR FILTER -- Adds 1-4 h.p. power gain; 96 percent to 99 percent filtration efficiency; 1 in. height, 8.5 in. outside length, 7.813 in. outside width; Unique style; This Air Filter is designed to increase horsepower and acceleration while providing excellent filtration; It is custom designed to fit into an existing factory air box and features a drop-in design which means adding performance is simple; Provides high air flow with excellent filtration; Economical and environmental friendly; Works with OEM vehicle electronics; Will lasts the life of your vehicle; Washable and reusable; Lasts up to 50,000 miles before cleaning is required depending on drive condition; 50-state legal; With K&N's limited million mile warranty.
Type: Direct OE replacement
Price: $42.19
| Make | Model | Year Range | Chassis/Engine |
| Ford | Focus | 2008 | S; 4Cyl 2.0L; |
| Ford | Focus | 2008 | SE; 4Cyl 2.0L; |
| Ford | Focus | 2008 | SEL; 4Cyl 2.0L; |
| Ford | Focus | 2008 | SES; 4Cyl 2.0L; |
K&N Cotton gauze Air Filter
App: 2007-2008 Ford Focus
Brand: K&N
Part #: RU-4950
Notes: K&N HIGH FLOW AIR FILTER, RED -- Racing use only; Not applicable nor intended for use on emission controlled street or highway vehicles; Provides up to 15 h.p. power gain; 96 to 99 percent filtration efficiency; 5.5 in. height, 6 in. base outside diameter, 5 in. top outside diameter; Oiled element; Round tapered style; Made of multiple interwoven layers of surgical cotton gauze; Increases horsepower and acceleration while providing excellent filtration; Constructed with ultra-strong molded pliable rubber flanges which absorb vibration; Allows secure attachment; Can be stretched up to 0.0625 in. or 1.5 mm to fit in-between sizes; Washable and reusable; With K&N's limited million mile warranty.
Material: Cotton gauzeStyle: Round TaperedType: Direct OE Replacement, High FlowWarranty: K&N's limited million-mile warranty
App: 2007-2008 Ford Focus
Brand: K&N
Part #: RU-4950
Notes: K&N HIGH FLOW AIR FILTER, RED -- Racing use only; Not applicable nor intended for use on emission controlled street or highway vehicles; Provides up to 15 h.p. power gain; 96 to 99 percent filtration efficiency; 5.5 in. height, 6 in. base outside diameter, 5 in. top outside diameter; Oiled element; Round tapered style; Made of multiple interwoven layers of surgical cotton gauze; Increases horsepower and acceleration while providing excellent filtration; Constructed with ultra-strong molded pliable rubber flanges which absorb vibration; Allows secure attachment; Can be stretched up to 0.0625 in. or 1.5 mm to fit in-between sizes; Washable and reusable; With K&N's limited million mile warranty.
Material: Cotton gauzeStyle: Round TaperedType: Direct OE Replacement, High FlowWarranty: K&N's limited million-mile warranty
Price: $39.93
| Make | Model | Year Range | Chassis/Engine |
| Ford | Focus | 2007 - 2008 | S; 4Cyl 2.0L; |
| Ford | Focus | 2007 - 2008 | SE; 4Cyl 2.0L; |
| Ford | Focus | 2007 - 2008 | SES; 4Cyl 2.0L; |
| Ford | Focus | 2008 | SEL; 4Cyl 2.0L; |
K&N Cotton gauze Air Filter
App: 2003-2007 Ford Focus
Brand: K&N
Part #: RU-4950
Notes: K&N HIGH FLOW AIR FILTER, RED -- Racing use only; Not applicable nor intended for use on emission controlled street or highway vehicles; Provides up to 15 h.p. power gain; 96 to 99 percent filtration efficiency; 5.5 in. height, 6 in. base outside diameter, 5 in. top outside diameter; Oiled element; Round tapered style; Made of multiple interwoven layers of surgical cotton gauze; Increases horsepower and acceleration while providing excellent filtration; Constructed with ultra-strong molded pliable rubber flanges which absorb vibration; Allows secure attachment; Can be stretched up to 0.0625 in. or 1.5 mm to fit in-between sizes; Washable and reusable; With K&N's limited million mile warranty.
Material: Cotton gauzeStyle: Round TaperedType: Direct OE Replacement, High FlowWarranty: K&N's limited million-mile warranty
App: 2003-2007 Ford Focus
Brand: K&N
Part #: RU-4950
Notes: K&N HIGH FLOW AIR FILTER, RED -- Racing use only; Not applicable nor intended for use on emission controlled street or highway vehicles; Provides up to 15 h.p. power gain; 96 to 99 percent filtration efficiency; 5.5 in. height, 6 in. base outside diameter, 5 in. top outside diameter; Oiled element; Round tapered style; Made of multiple interwoven layers of surgical cotton gauze; Increases horsepower and acceleration while providing excellent filtration; Constructed with ultra-strong molded pliable rubber flanges which absorb vibration; Allows secure attachment; Can be stretched up to 0.0625 in. or 1.5 mm to fit in-between sizes; Washable and reusable; With K&N's limited million mile warranty.
Material: Cotton gauzeStyle: Round TaperedType: Direct OE Replacement, High FlowWarranty: K&N's limited million-mile warranty
Price: $39.93
| Make | Model | Year Range | Chassis/Engine |
| Ford | Focus | 2003 - 2004 | LX; 4Cyl 2.3L; |
| Ford | Focus | 2003 - 2004 | SE; 4Cyl 2.3L; |
| Ford | Focus | 2003 - 2004 | ZTS; 4Cyl 2.3L; |
| Ford | Focus | 2003 - 2004 | ZTW; 4Cyl 2.3L; |
| Ford | Focus | 2003 - 2004 | ZX3; 4Cyl 2.3L; |
K&N Cotton gauze Air Filter
App: 2002-2004 Ford Focus
Brand: K&N
Part #: RU-4960
Notes: K&N HIGH FLOW AIR FILTER, RED -- Racing use only; Not applicable nor intended for use on emission controlled street or highway vehicles; Provides up to 15 h.p. power gain; 96 to 99 percent filtration efficiency; 5.5 in. height, 6 in. base outside diameter, 5 in. top outside diameter; Oiled element; Round tapered style; Made of multiple interwoven layers of surgical cotton gauze; Increases horsepower and acceleration while providing excellent filtration; Constructed with ultra-strong molded pliable rubber flanges which absorb vibration; Allows secure attachment; Can be stretched up to 0.0625 in. or 1.5 mm to fit in-between sizes; Washable and reusable; With K&N's limited million mile warranty.
Material: Cotton gauzeStyle: Round TaperedType: Direct OE Replacement, High FlowWarranty: K&N's limited million-mile warranty
App: 2002-2004 Ford Focus
Brand: K&N
Part #: RU-4960
Notes: K&N HIGH FLOW AIR FILTER, RED -- Racing use only; Not applicable nor intended for use on emission controlled street or highway vehicles; Provides up to 15 h.p. power gain; 96 to 99 percent filtration efficiency; 5.5 in. height, 6 in. base outside diameter, 5 in. top outside diameter; Oiled element; Round tapered style; Made of multiple interwoven layers of surgical cotton gauze; Increases horsepower and acceleration while providing excellent filtration; Constructed with ultra-strong molded pliable rubber flanges which absorb vibration; Allows secure attachment; Can be stretched up to 0.0625 in. or 1.5 mm to fit in-between sizes; Washable and reusable; With K&N's limited million mile warranty.
Material: Cotton gauzeStyle: Round TaperedType: Direct OE Replacement, High FlowWarranty: K&N's limited million-mile warranty
Price: $36.74
| Make | Model | Year Range | Chassis/Engine |
| Ford | Focus | 2002 - 2004 | SVT; 4Cyl 2.0L; |
K&N Cotton gauze Air Filter
App: 2000-2004 Ford Focus
Brand: K&N
Part #: 33-2819
Notes: K&N HIGH FLOW DIRECT FIT AIR FILTER, RED -- 50-state legal; Provides 1 to 4 h.p. power gain; 96 to 99 percent filtration efficiency; 1.063 in. height, 10.375 in. outside length, 5.625 in. outside width; Oiled element; Panel style; Made of multiple interwoven layers of surgical cotton gauze; Increases horsepower and acceleration while providing excellent filtration; Custom designed to fit into existing air box and features a drop-in design which means adding performance is simple; Provides high air flow with excellent filtration; Economical and environment friendly; Works with OEM vehicle electronics; Will last the life of your vehicle; Washable and reusable; Lasts up to 50,000-mile before cleaning is required depending on drive condition; With K&N's limited million mile warranty.
Material: Cotton gauzeStyle: PanelType: Direct OE Replacement, High Flow OE ReplacementWarranty: K&N's limited million-mile warranty
App: 2000-2004 Ford Focus
Brand: K&N
Part #: 33-2819
Notes: K&N HIGH FLOW DIRECT FIT AIR FILTER, RED -- 50-state legal; Provides 1 to 4 h.p. power gain; 96 to 99 percent filtration efficiency; 1.063 in. height, 10.375 in. outside length, 5.625 in. outside width; Oiled element; Panel style; Made of multiple interwoven layers of surgical cotton gauze; Increases horsepower and acceleration while providing excellent filtration; Custom designed to fit into existing air box and features a drop-in design which means adding performance is simple; Provides high air flow with excellent filtration; Economical and environment friendly; Works with OEM vehicle electronics; Will last the life of your vehicle; Washable and reusable; Lasts up to 50,000-mile before cleaning is required depending on drive condition; With K&N's limited million mile warranty.
Material: Cotton gauzeStyle: PanelType: Direct OE Replacement, High Flow OE ReplacementWarranty: K&N's limited million-mile warranty
Price: $32.45
| Make | Model | Year Range | Chassis/Engine |
| Ford | Focus | 2000 | Sony Limited Edition; 4Cyl 2.0L; |
| Ford | Focus | 2000 - 2003 | LX; 4Cyl 2.0L; |
| Ford | Focus | 2000 - 2003 | SE; 4Cyl 2.0L; |
| Ford | Focus | 2000 - 2003 | ZTS; 4Cyl 2.0L; |
| Ford | Focus | 2000 - 2003 | ZX3; 4Cyl 2.0L; |
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