Air Filter, Performance (K&N) for B8 A4-A5-S4-S5 or Q5-SQ5 w/ 3.0T, 3.2L, and 4.2L

Audi Air Filter for B6/B7 S4 and RS4 w 4.2L (K&N)

ECS - 003675ECS01A - Red Cotton Gauze Oiled Air Filter Element (3 1/8 inlet)

CTS Turbo Audi B8/B8.5 S4, S5, Q5, SQ5 Air Intake System (True 3.5″ velocity stack) - WCT Performance Canada

Audi aFe POWER

IE Cold Air Intake for B8 S4 & S5 3.0T

K&N Engine Air Filter: Increase Power & Acceleration, Washable, Premium, Replacement Car Air Filter: Compatible with 2007-2017 Audi V6/V8 ( Q5, S5, SQ5, A5, A5 Quattro, S4, A4 Quattro) E-1987 : Automotive

Audi aFe POWER

Shop By Car - Audi - S5 (B8) - Induction Kits - Page 1 - Awesome GTI - Volkswagen Audi Group Specialists

APR - CI100023 - Cold Air Intake Stage 1

K & N Performance Air Filter (E-1987) for Audi B8/8.5 A4/A5/S4/S5/Q5/SQ5 - WCT Performance Canada

Ats Downpipes

Shop By Car - Audi - S5 (B8) - Induction Kits - Page 1 - Awesome GTI - Volkswagen Audi Group Specialists

air filter audi in All Categories in Ontario - Kijiji Canada

Cabin Air Filters, Air Conditioning & Heating, Car & Truck Parts & Accessories, Parts & Accessories, Automotive - PicClick CA

K&N - e-1987 - Performance Air Filter