Exhaust & Emission Systems for 2006 Audi A4
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Catalytic Converter For 1997-2006 Volkswagen Passat/Audi A4/Audi A4 QUATTRO 1.8L (Fits: 2006 Audi A4)
Brand New$88.99or Best OfferFree shipping2005-2009 AUDI A4 Quattro 2.0L Catalytic Converter Turbo (Fits: More than one vehicle)
Brand New$149.90$19.95 shipping34 soldCatalytic Converter Fits 2006 Audi A4 Cabriolet Turbo 1.8L L4 GAS DOHC (Fits: 2006 Audi A4)
USC PN# 514019-AD - Fits Front - SHIPS FREE!!Brand New$140.25Was: $165.00Free shippingNew ListingSuperior For 1997-2006 Audi A4 Volkswagen Passat 1.8L Catalytic Converter EPA
Brand New$99.99or Best OfferFree shippingPCV Crankcase Vent Valve For 06F129101P Audi A3 A4 Quattro 2.0L 2006 2007 2008 (Fits: More than one vehicle)
Brand New: Unbranded$14.60Top Rated Plus- Sellers with highest buyer ratings
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Free shipping98 soldVapor Canister Purge Solenoid Valve For Audi A4 A6 A8 VW Passat Jetta 06E906517 (Fits: More than one vehicle)
Brand New: AUXITO$13.99Top Rated Plus- Sellers with highest buyer ratings
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or Best OfferFree shippingSecondary Air Injection Pump For 1998-2006 Audi A4 Volkswagen Golf 078906601M
Brand New: 1$50.45Free shippingFront Flex Pipe for 2005 - 2009 Audi A4 Quattro Auto Transmission 2.0T (Fits: 2006 Audi A4 Quattro)
Brand New: Unbranded$67.99Top Rated Plus- Sellers with highest buyer ratings
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Free shippingTurbo Manifold fits 1997-2005 Audi A4/A4 Quattro Base Sedan 4D 1.8L I4 (Fits: 2006 Audi A4)
Brand New: EMUSA$99.99Free shippingDirect fit Exhaust Resonator Pipe fits: 2005 - 2009 Audi A4 Quattro 2.0L (Fits: 2006 Audi A4 Quattro)
Northeastern Stainless Steel - LimitedLifetime WarrantyBrand New$139.84Free shippingAir Smog Pump Audi A4 A6 A8 Touareg VW Passat Jetta GTI Beetle - 06A 959 253 B (Fits: More than one vehicle)
Pre-Owned: Volkswagen$39.99Free shippingFor 2005 - 2009 Audi A4 Quattro 2.0L FLEX PIPE **AUTOMATIC** (Fits: 2006 Audi A4 Quattro)
Brand New: Unbranded$67.99Top Rated Plus- Sellers with highest buyer ratings
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Free shipping13 watchingCatalytic Converter for 2006 Audi A4 Turbo 1.8L L4 GAS DOHC (Fits: 2006 Audi A4)
US Convertors PN# 514019-DO FREE SHIPPING/EPA CompliantBrand New$165.00Free shippingCatalytic Converter Fits 2006 Audi A4 Cabriolet Turbo 1.8L L4 GAS DOHC (Fits: 2006 Audi A4)
USC PN# 514019-BU - Fits Front - SHIPS FREE!!Brand New$140.25Was: $165.00Free shippingCatalytic Converter for 2006 Audi A4 Cabriolet Turbo 1.8L L4 GAS DOHC (Fits: 2006 Audi A4)
US Convertors PN# 514019-DQ FREE SHIPPING/EPA CompliantBrand New$165.00Free shippingBOSCH Vapor Canister Purge Valve Emission 0280142353 For AUDI A4 A6 TT VW Golf (Fits: More than one vehicle)
Brand New: Bosch$23.85Was: $26.50or Best OfferFree shippingOnly 1 left!1x Secondary Air Injection Pump For 2000-2004 Audi A4 06A959253B (Fits: More than one vehicle)
Brand New$37.59Top Rated Plus- Sellers with highest buyer ratings
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Free shippingPCV Crankcase Vent Valve For 2006 2007 2008 Audi A3 A4 Quattro 2.0L 06F129101E/G (Fits: More than one vehicle)
Brand New: Unbranded$14.60Top Rated Plus- Sellers with highest buyer ratings
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Free shipping660 soldOES 2100-97037 Exhaust Front Flex Pipe fits 2002-2006 Audi A4 1.8T
New (Other): OES$75.75Was: $94.69or Best OfferFree shippingNew ListingFor AUDI A4 A6 (2002-2006) Catalytic Converter Gasket ELRING KLINGER + WARRANTY (Fits: 2006 Audi A4 Quattro)
Brand New: Elring$25.70Top Rated Plus- Sellers with highest buyer ratings
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Free shippingExhaust Front Flex Pipe fits: 2005-2009 Audi A4 2.0L 2WD Automatic Transmission (Fits: 2006 Audi A4)
Brand New: Unbranded$67.99Top Rated Plus- Sellers with highest buyer ratings
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Free shippingExhaust Front Flex Pipe fits: 2002-2006 Audi A4 1.8T Automatic Transmission (Fits: 2006 Audi A4)
Northeastern ExhaustBrand New$89.74$4.95 shippingCatalytic Converter Manifold FOR 1998-2005 VW Passat 1997-2006 Audi A4 1.8T
Brand New$61.95Free shippingBOSCH 16986 Oxygen Sensor FOR Porsche Cayenne AUDI A3, A4, A4 Quattro VW NO BOX (Fits: More than one vehicle)
Brand New: Bosch$50.00Top Rated Plus- Sellers with highest buyer ratings
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4pcs Up+Down Oxygen Sensor For Audi A6 A4 3.2L V6 2005 2006 2007 2008 2009 (Fits: More than one vehicle)
Brand New$88.69Was: $97.46or Best OfferFree shippingPair of Rear Exhaust Mufflers fits: 2006 - 2009 Audi A4 Quattro 2.0L 3.2L (Fits: 2006 Audi A4 Quattro)
Brand New$329.74Free shipping6 watchingSecondary Air Injection Smog Pump For Audi A4 A6 A8 Quattro Volkswagen Passat (Fits: More than one vehicle)
Brand New$42.09Free shippingN/A Catalytic Converter for 2006 Audi A4 Turbo 1.8L L4 GAS DOHC (Fits: 2006 Audi A4)
US Convertors PN# 514019-DP FREE SHIPPING/EPA CompliantBrand New$165.00Free shippingCatalytic Converter for Audi A4 2001-2004 Turbo 1.8L L4 GAS DOHC (Fits: 2006 Audi A4)
Brand New$100.22Was: $105.50or Best OfferFree shippingSecondary Air Injection Pump Fits Audi A4 A6 A8 Q7 VW Jetta Golf Passat Beetle (Fits: More than one vehicle)
Brand New: TOPAZ$42.64Was: $44.88or Best OfferFree shippingBosch Oxygen Sensor 16980 For Audi Porsche Volkswagen A4 A4 Quattro A6 2000-2006 (Fits: 2006 Audi A4)
Brand New: Bosch$33.25Was: $35.00Free shippingAir Inject Check Valves Driver Side For 2002-2006 Audi A4 A6 Quattro 06C131101E (Fits: 2006 Audi A4 Quattro)
Hassle Free Returns. Free Fast Shipping.Brand New: Perfect Fit$7.20Free shippingStainless Steel Left Driver Side Muffler fits: 2005-09 Audi A4 Quattro 2.0L 3.2L (Fits: 2006 Audi A4 Quattro)
Northeastern Stainless Steel-Limited Lifetime WarrantyBrand New$159.84Free shippingSecondary Air Injection Pump Fit For AUDI A4 A6 A8 Q7 VW Jetta Beetle Passat (Fits: More than one vehicle)
Brand New$41.99Top Rated Plus- Sellers with highest buyer ratings
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Free shippingOnly 3 leftSECONDARY AIR INJECTION SMOG PUMP AUDI A4 A6 A8 Q7 TT VW BEETLE CABRIO GOLF OEM (Fits: More than one vehicle)
Pre-Owned: Audi$31.99$11.30 shippingFor Audi A3 VW GTI Purge Valve for Fuel Vapor Canister OEM BOSCH 06E 906 517 A (Fits: More than one vehicle)
Brand New: Bosch$15.51Was: $26.14Free shipping676 soldCatalytic Converter Fits 2005-2006 Audi A4 Trendy Turbo 1.8L L4 GAS DOHC (Fits: 2006 Audi A4)
USC PN# 514019-AX - Fits Front - SHIPS FREE!!Brand New$140.25Was: $165.00Free shippingCatalytic Converter Fits 2005-2006 Audi A4 Cabrio Turbo 1.8L L4 GAS DOHC (Fits: 2006 Audi A4)
USC PN# 514019-BT - Fits Front - SHIPS FREE!!Brand New$140.25Was: $165.00Free shippingNew Canister Purge Solenoid/Purge Valve For 2000 2001-2006 Audi A4 TT Quattro (Fits: More than one vehicle)
Brand New: Unbranded(1)1 product ratings - New Canister Purge Solenoid/Purge Valve For 2000 2001-2006 Audi A4 TT Quattro$10.40Top Rated Plus- Sellers with highest buyer ratings
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Free shippingSecondary Air Pump For Audi A4 A6 A8 Q7 VW Volkswagen Beetle Golf 078906601E (Fits: More than one vehicle)
Brand New: Autodayplus$37.99Top Rated Plus- Sellers with highest buyer ratings
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or Best OfferFree shippingFor 2005 - 2009 Audi A4 Quattro 2.0L FLEX PIPE **AUTOMATIC** 73-1SE-21-05 (Fits: 2006 Audi A4 Quattro)
Brand New: Unbranded$67.99Top Rated Plus- Sellers with highest buyer ratings
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Free shipping10 watchingSUCTION PUMP / VACUUM VALVE - AUDI 100 A4 A6 A8 RS6 VW BEETLE GOLF JETTA PASSAT (Fits: 2006 Audi A4)
Pre-Owned: Audi$11.99Free shippingNew Listing2002-2006 Audi A4 Secondary Air Injection Pump Hose Genuine OEM 8E0133889E (Fits: 2006 Audi A4)
Pre-Owned: Audi$52.50Free shippingExhaust Resonator Pipe-Resonator Assembly Walker fits 05-09 Audi A4 Quattro (Fits: 2006 Audi A4 Quattro)
Brand New: Walker$116.99or Best Offer$37.01 shipping2004-2006 Audi A4 Quattro 3.0L Secondary Air Valve W/ Hoses. (2173A)
Pre-Owned: Audi$30.00or Best Offer$5.00 shippingVapor Canister Purge Valve Solenoid Vent Purge Control Valve For Audi A3 A4 A6 (Fits: More than one vehicle)
Brand New: AUXITO$13.99Top Rated Plus- Sellers with highest buyer ratings
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or Best OfferFree shippingVapor Canister Purge Vent Valve Solenoid Fit For AUDI A3 A4 A6 Q7 A8 TT VW 2.0T (Fits: More than one vehicle)
Brand New: Unbranded$10.99Top Rated Plus- Sellers with highest buyer ratings
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Free shippingAir Fuel Ratio Oxygen Sensor for 2001-2006 Audi A4 TT Volkswagen Golf Upstream (Fits: 2006 Audi A4)
Brand New$30.19or Best OfferFree shippingSecondary Air Injection Pump Fits For 1999-2012 Audi A4 A6 A8 Q7 TT 06A959253A (Fits: More than one vehicle)
Brand New$41.89$4.99 shippingStainless Driver Side Exhaust Muffler fits 2006 - 2009 Audi A4 Quattro 2.0L 3.2L (Fits: 2006 Audi A4 Quattro)
Brand New$152.74Free shippingEGR Vacuum Solenoid Valve 037906283C For Audi A4 A6 Quattro Beetle Passat (Fits: More than one vehicle)
Brand New$13.25Top Rated Plus- Sellers with highest buyer ratings
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or Best OfferFree shippingCatalytic Converter 2005-2009 Audi A4 Quattro 2.0L Turbo (Fits: 2006 Audi A4 Quattro)
5 YEARS WARRANTY,FREE SHIPPINGBrand New: Quality$128.00Top Rated Plus- Sellers with highest buyer ratings
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Free shipping22 soldEP014 For Audi A4 A6 A8 Q7 TT VW Beetle Auxiliary Secondary Air Injection Pump (Fits: More than one vehicle)
Brand New: King$58.30Free shippingFront Flex Pipe fits: 2005 - 2009 Audi A4 Quattro 2.0T (Fits: 2006 Audi A4 Quattro)
Brand New$81.84Free shipping150 soldOEM Vapor Canister Purge Solenoid Valve For Audi A4 A6 A8 Q7 VW Passat Beetle (Fits: More than one vehicle)
Brand New: Bosch$14.99or Best OfferFree shippingCatalytic Converter Fits 2005-2006 Audi A4 Luxury Turbo 1.8L L4 GAS DOHC (Fits: 2006 Audi A4)
USC PN# 514019-AV - Fits Front - SHIPS FREE!!Brand New$140.25Was: $165.00Free shippingCatalytic Converter For 1998-2005 Volkswagen Passat 1997-2006 Audi A4 1.8L FWD (Fits: 2006 Audi A4)
Federal-EPA or 46-State LegalBrand New: EvanFischer$180.20Was: $218.98Free shipping