Audi 4000 Quattro Air Filter

K&N HIGH FLOW DIRECT FIT AIR FILTER, RED, SOLD INDIVIDUALLY -- 50-state legal; Provides 1 to 4 h.p. power gain; 96 to 99 percent filtration efficiency; 0.75 in. height, 9.875 in. outside length, 8.25 in. outside width; Oiled element; Panel style; Made of ...

K&N HIGH FLOW DIRECT FIT AIR FILTER, RED, SOLD INDIVIDUALLY -- 50-state legal; Provides 1 to 4 h.p. power gain; 96 to 99 percent filtration efficiency; 1.125 in. height, 10.313 in. outside length, 8.25 in. outside width; Oiled element; Panel style; Made o...

K&N HIGH FLOW DIRECT FIT AIR FILTER, RED, SOLD INDIVIDUALLY -- 50-state legal; Provides 1 to 4 h.p. power gain; 96 to 99 percent filtration efficiency; 1.25 in. height, 14 in. outside length, 7.188 in. outside width; Oiled element; Panel style; Made of mu...

K&N HIGH FLOW AIR FILTER, UNIQUE STYLE -- Height 5.375, OD 6.375, ID 3.563, A High Performance Air Filter Designed to Increase Horsepower and Acceleration, Offers High Air Flow With Excellent Filtration, Washable and Reusable, Fits Into The Existing Facto...

K&N HIGH FLOW AIR FILTER, PANEL STYLE -- Height 1.563, Outside Length 8.25, Outside Width 8.125, A High Performance Air Filter Designed to Increase Horsepower and Acceleration, Offers High Air Flow With Excellent Filtration, Washable and Reusable, Fits In...

K&N HIGH FLOW DIRECT FIT AIR FILTER, RED, SOLD INDIVIDUALLY -- 50-state legal; Provides 1 to 4 h.p. power gain; 96 to 99 percent filtration efficiency; 1.188 in. height, 15.25 in. outside length, 7.313 in. outside width; Oiled element; Panel style; Made o...

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; 1.188 in. height, 13.438 in. outside length, 5.313 in. outside width; Oiled element; Panel style; Made of multiple interwo...

K&N HIGH FLOW AIR FILTER, PANEL STYLE -- Height 1.563, Outside Length 13.125, Outside Width 5, A High Performance Air Filter Designed to Increase Horsepower and Acceleration, Offers High Air Flow With Excellent Filtration, Washable and Reusable, Fits Into...

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; 1.625 in. height, 10.625 in. outside length, 5 in. outside width; Oiled element; Panel style; Made of multiple interwoven ...

K&N HIGH FLOW AIR FILTER, PANEL STYLE -- Height 1.125, Outside Length 12.063, Outside Width 7.125, A High Performance Air Filter Designed to Increase Horsepower and Acceleration, Offers High Air Flow With Excellent Filtration, Washable and Reusable, Fits ...

K&N HIGH FLOW AIR FILTER, PANEL STYLE -- Height 1.125, Outside Length 5.813, Outside Width 14.938, A High Performance Air Filter Designed to Increase Horsepower and Acceleration, Offers High Air Flow With Excellent Filtration, Washable and Reusable, Fits ...

K&N HIGH FLOW AIR FILTER, ROUND TAPERED -- OD 4.688', Flange ID 2.75', Flange Length 0.813', A High Performance Washable And Reusable Filter That Lasts Longer, Made With Ultra-Strong Molded Pliable Rubber Flanges Which Absorbs Vibration, Allows Secure Att...

K&N HIGH FLOW AIR FILTER, PANEL STYLE -- 1.125 Height, 11.188" Outside Length, 9.938" Outside Width, Designed To Increase Horsepower And Acceleration While Providing Excellent Filtration, Washable And Reusable, Custom Designed To Fit Into An Existing Fact...

K&N HIGH FLOW AIR FILTER, ROUND -- Height 7.25, ID 4, OD 5.75, A High Performance Air Filter Designed to Increase Horsepower and Acceleration, Offers High Air Flow With Excellent Filtration, Washable and Reusable, Fits Into The Existing Factory Air Box, W...

K&N AIR FILTER -- 50-state legal; Provides 1 to 4 h.p. power gain; 96 to 99 percent filtration efficiency; 6.063 in. height, 6 in. base outside diameter, 3.625 in. flange inside diameter, 0.625 in. flange length; Multiple interwoven layers of surgical cot...