Audi S4 Air Filters

1981 Audi S4 is a wonderful vehicle from the factory. The parts you will find in our catalog will help you bring the best out of your S4. We have 3094 Air Filters available for your 1981 S4 all priced at lowest possible price backed by FREE SHIPPING. 

We price match competitors ... Shop with confidence. 


What Year Is Your Audi S4


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aFe Magnum FLOW Air Filter w/ Pro 5R Media
aFe Magnum FLOW Air Filter w/ Pro 5R Media
Universal Part | Part #: 24-90055

Magnum FLOW Universal Air Filter w/ Pro 5R Media 4 F x 7 B x 7 T x 6 H in

Highlights: Blue; Pro 5R; 7"; Cotton Gauze; Pre-Oiled; 4"; 6"; Closed Conical; 2 Years Manufacturer Warranty
Price: $88.00
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aFe Magnum FLOW Round Racing Air Filter w/ Pro GUARD 7 Media
aFe Magnum FLOW Round Racing Air Filter w/ Pro GUARD 7 Media
Universal Part | Part #: 18-11477

Magnum FLOW Round Racing Air Filter w/ Pro GUARD 7 Media 14 IN OD x 12 IN ID x 6 IN H w/ Expanded Metal Structure

Highlights: Pro GUARD 7; 14"; Gold; Cotton and Non-woven Synthetic; Round Racing; 12"; 6"; Yes; Round; Yes; 1 Year Manufacturer Warranty
Price: $112.00
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aFe Magnum FLOW Air Filter Oil 13 oz Aerosol (12-Pack)
aFe Magnum FLOW Air Filter Oil 13 oz Aerosol (12-Pack)
Universal Part | Part #: 90-10512L

Magnum FLOW Air Filter Oil 13 oz Aerosol (12-Pack)

Highlights: No Warranty
Price: $194.00
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K&N Round Velocity Stack Assembly
K&N Round Velocity Stack Assembly
Universal Part | Part #: 58-1210

VS FILTER ASSY 7-5/16"FLG 10"H

Highlights: Red; 5 in (127 mm); 7.5 in (191 mm); Cotton Gauze; Round; Red Filter; Chrome Top; 1.58 oz (47 ml); 7.313 in (186 mm); Yes; Yes; 7.313 in (186 mm); 9 in (229 mm); 10 in (254 mm); E-3650; 9 Inch; Velocity Stack; Chrome; Open
Price: $157.99
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K&N Round Tapered Universal Clamp-On Air Filter
K&N Round Tapered Universal Clamp-On Air Filter
Universal Part | Part #: RC-5171

4"FLG; 8"B; 6-5/8"T W/OFFSET STUD; 12"H

Highlights: 8 in (203 mm); Round Tapered; 8 in (203 mm); Cotton Gauze; 11.64 oz (344 ml); 0 degrees; 4 in (102 mm); 1.5 in (38 mm); 1.5 in (38 mm); 0 in (0 mm); Centered; 1; 12 in (305 mm); Black Powder Coated; 6.625 in (168 mm); Metal
Price: $129.99
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K&N Round Tapered Universal Clamp-On Air Filter
K&N Round Tapered Universal Clamp-On Air Filter
Universal Part | Part #: RC-8370

80MM FLG; 147MM B OD; 89MM T OD; 139MM H

Highlights: 5.781 in (147 mm); Round Tapered; 5.781 in (147 mm); Cotton Gauze; 0.52 oz (15 ml); 0 degrees; 3.156 in (80 mm); 0.75 in (19 mm); 0.5 in (13 mm); Offset; 1; 40; 5.469 in (139 mm); Chrome; 3.5 in (89 mm); Metal
Price: $63.95
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K&N Round Universal Clamp-On Air Filter
K&N Round Universal Clamp-On Air Filter
Universal Part | Part #: RU-0870

2-7/16"O/S FLG; 5-1/2"OD; 3"H

Highlights: Round; Cotton Gauze; 0.57 oz (17 ml); 0 degrees; 0 in (0 mm); 2.438 in (62 mm); 0.625 in (16 mm); 0.5 in (13 mm); Offset; 1; No; 0 in (0 mm); 3 in (76 mm); 5.5 in (140 mm); None; Rubber
Price: $55.95
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K&N Round Tapered Universal Clamp-On Air Filter
K&N Round Tapered Universal Clamp-On Air Filter
Universal Part | Part #: RC-4230

3-1/2"FLG; 5"OD; 5-1/8"T;2"H

Highlights: 5.125 in (130 mm); Round Tapered; 0 in (0 mm); 5 in (127 mm); Cotton Gauze; 0.35 oz (10 ml); 0 degrees; 0 in (0 mm); 3.5 in (89 mm); 0.625 in (16 mm); 0 in (0 mm); Centered; 1; Base Has 29/32" Vent; No; 2 in (51 mm); Chrome; 5.125 in (130 mm); Metal
Price: $64.99
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K&N Black Round Tapered Drycharger Air Filter Wrap
K&N Black Round Tapered Drycharger Air Filter Wrap
Universal Part | Part #: RC-3070DK

DRYCHARGER WRAP; RC-3070; BLACK

Highlights: Black; Round Tapered; 7.5 in (191 mm); No; 18 in (457 mm); Silicone Treated Polyester; 7 in (178 mm)
Price: $44.99
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K&N Yellow Round Tapered Drycharger Air Filter Wrap
K&N Yellow Round Tapered Drycharger Air Filter Wrap
Universal Part | Part #: RF-1015DY

DRYCHARGER WRAP; YELLOW; CUSTOM

Highlights: Yellow; Round Tapered; 6 in (152 mm); No; 7 in (178 mm); Silicone Treated Polyester; 4.5 in (114 mm)
Price: $49.99
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K&N Round Tapered Universal Clamp-On Air Filter
K&N Round Tapered Universal Clamp-On Air Filter
Universal Part | Part #: RC-8070

2-11/16"FLG; 5-3/16"B; 3-1/2"T; 4-5/16"H w/25/32"SMG.PRT

Highlights: 5.188 in (132 mm); Round Tapered; 5.188 in (132 mm); Cotton Gauze; 0.47 oz (14 ml); 0 degrees; 2.688 in (68 mm); 0.75 in (19 mm); 0.563 in (14 mm); Offset; 1; Base Has 5/16" Vent; 4.313 in (110 mm); Chrome; 3.5 in (89 mm); Metal
Price: $26.95
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Spectre Oval Air Filter
Spectre Oval Air Filter
Universal Part | Part #: HPR4810W

AIR FILTER; OVAL 15" X 2" - WHITE

Highlights: White; Oval; 15 in (381 mm); 8 in (203 mm); Non-woven Synthetic; 0.68 oz (20 ml); 0 degrees; 0 in (0 mm); 0 in (0 mm); None; No; 12.938 in (329 mm); 6.063 in (154 mm); 2 in (51 mm); 15 in (381 mm); 8 in (203 mm); None; 15 in (381 mm); 8 in (203 mm); Rubber
Price: $44.99
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aFe ProHDuty Replacement Air Filter w/ Pro 5R Media
aFe ProHDuty Replacement Air Filter w/ Pro 5R Media
Universal Part | Part #: 70-50012

ProHDuty Replacement Air Filter w/ Pro 5R Media For 70-50112 Housing

Highlights: Blue; Pro 5R; OEM; Cotton Gauze; Pre-Oiled; OEM; OEM; OEM; 2 Years Manufacturer Warranty
Price: $70.95
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aFe Magnum FLOW Air Filter w/ Pro 5R Media
aFe Magnum FLOW Air Filter w/ Pro 5R Media
Universal Part | Part #: 24-45510

Magnum FLOW Universal Air Filter w/ Pro 5R Media 4-1/2 IN F x 6 IN B x 4-3/4 IN T x 10 IN H

Highlights: Blue; Pro 5R; 6" x 4.75"; Cotton Gauze; Pre-Oiled; 4.5"; 10"; Closed Conical; 2 Years Manufacturer Warranty
Price: $88.00
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aFe Magnum FLOW Intake Replacement Air Filter w/ Pro DRY S Media
aFe Magnum FLOW Intake Replacement Air Filter w/ Pro DRY S Media
Universal Part | Part #: 24-90095

Magnum FLOW Intake Replacement Air Filter w/ Pro DRY S Media 4"F x 6"B x 4-3/4"T x 7"H in (w/ Bumps)

Highlights: White; Pro Dry S; Dry; Conical; 2 Years Manufacturer Warranty
Price: $72.95
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aFe Magnum FLOW Round Racing Air Filter w/ Pro 5R Media
aFe Magnum FLOW Round Racing Air Filter w/ Pro 5R Media
Universal Part | Part #: 18-11407

Magnum FLOW Round Racing Air Filter w/ Pro 5R Media 14 IN OD x 12 IN ID x 6 IN H w/ Expanded Metal Structure

Highlights: Pro 5R; 14"; Blue; Cotton; Round Racing; 12"; 6"; Yes; Round; Yes; 1 Year Manufacturer Warranty
Price: $112.00
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aFe Magnum FLOW Intake Replacement Air Filter w/ Pro DRY S Media
aFe Magnum FLOW Intake Replacement Air Filter w/ Pro DRY S Media
Universal Part | Part #: 21-91080

Magnum FLOW Intake Replacement Air Filter w/ Pro DRY S Media 5-1/2Fx(7x10)Bx(7x9)T

Highlights: White; Pro Dry S; Mesh Synthetic Media; Dry; Universal; 2 Years Manufacturer Warranty
Price: $119.95
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Mishimoto Performance Air Filter
Mishimoto Performance Air Filter
Universal Part | Part #: MMAF-2757
Highlights: (1) High-Flow, Oiled Filter|Worm-gear Clamp|Mishimoto Lifetime Warranty; No; 13625: 1.3625" Inlet, 2.42" Filter Length,2756: 2.75" Inlet, 5.827" Filter Length,5007: 5.00" Inlet, 7.00" Filter Length,2757: 2.75" Inlet, 7.00" Filter Length,2758: 2.75" Inlet, 7.75" Filter Length,3007: 3.00" Inlet, 7.00" Filter Length,3006: 3.00" Inlet, 6.00" Filter Length,4006: 4.00" Inlet, 6.00" Filter Length,4007: 4.00" Inlet, 7.00" Filter Length,3506: 3.50" Inlet, 6.00" Filter Length,3508: 3.50" Inlet, 8.00" Filter Length,4578: 4.50" Inlet, 7.80" Filter Length; INSTALLATION TORQUE SPECS,27 in-lbs (3N*M) recommended for all t-bolt and constant-tension t-bolt clamps.,These clamps have an operating range of 18-35 in-lbs (2-4N*M).,Do not exceed the maximum torque rating of 35 in-lbs (4N*M).; 2.75"; 7"; 1.75"; 5.25"; 8.25"; 5.875"; 38g; Red; 2
Price: $68.95
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Showing 2287 to 2304 of 3110 (173 Pages)
Showing 2287 to 2304 of 3110 (173 Pages)
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