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Audi TT MKI Quattro 225HP

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Audi TT MKI Quattro 225HP Exhaust Emission Parts

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Shut-Off Valve

ES#4985 - 06A131102F - Shut-Off Valve - Also known as the 'combi valve' - Pierburg - Audi Volkswagen

Also known as the 'combi valve' Up to the 2002 model year

Brand:
Pierburg - Corporate Logo
ES#:
4985
Mfg#:
06A131102F
Special Order: No Guaranteed ETA
$94.85 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal Oxygen Sensor Bung - Priced Each

ES#5051 - ATP-FLS-022 - Universal Oxygen Sensor Bung - Priced Each - Stainless steel weld-in nut for any O2 sensor - ATP - Audi BMW Volkswagen

Stainless steel weld-in nut for any O2 sensor

Brand:
ATP - Corporate Logo
ES#:
5051
Mfg#:
ATP-FLS-022
Ships in 6 Business Days
$12.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Dual Drive Oxygen Sensor Wrench

ES#2944218 - LIS12390 - Dual Drive Oxygen Sensor Wrench - Tool comes with both 1/2" and 3/8" drive. - Lisle - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Tool comes with both 1/2" and 3/8" drive.

Brand:
Lisle - Corporate Logo
ES#:
2944218
Mfg#:
LIS12390
Ships in 6 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Self Locking Nut - Priced Each

ES#2957540 - N0221469 - Self Locking Nut - Priced Each - Install new hardware with your new parts. M8 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M8 Secures the downpipe to the catalytic converter

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2957540
Mfg#:
N0221469
Ships in 2 Business Days
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Gasket - Priced Each

ES#3536252 - 8L9253232A - Exhaust Gasket - Priced Each - Located between the exhaust downpipe and the catalytic converter - Two per vehicle - Ajusa - Audi

Located between the exhaust downpipe and the catalytic converter - Two per vehicle

Brand:
Ajusa - Corporate Logo
ES#:
3536252
Mfg#:
8L9253232A
Back Ordered
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Offset Oxygen Sensor Wrench- Extended

ES#4001169 - CTA2065 - Offset Oxygen Sensor Wrench- Extended - Extra length is needed sometimes - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Extra length is needed sometimes

Brand:
CTA Tools - Corporate Logo
ES#:
4001169
Mfg#:
CTA2065
Back Ordered
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Self Locking Nut - Priced Each

Install new hardware with your new parts. M8 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Secures the downpipe to the catalytic converter

Brand:
Rein - Corporate Logo
ES#:
2802990
Mfg#:
N0221465
Ships in 3 Business Days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Self Locking Nut - Priced Each

ES#2872938 - N0221464 - Self Locking Nut - Priced Each - Use new hardware with your new parts. M8 - Febi - Audi Volkswagen

Use new hardware with your new parts. M8 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Secures the downpipe to the catalytic converter

Brand:
Febi - Corporate Logo
ES#:
2872938
Mfg#:
N0221464
Special Order: No Guaranteed ETA
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valve Gasket Sealing Kit

Upgrade your sealing performance during your next secondary air injection service with this complete Combi Valve & EGR Gasket Kit 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5482441
Mfg#:
06A131102FKT
Ships on Dec 10, 2026
$103.99

This product was last offered at the strikethrough price on
08-07-2026

$102.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Catalytic Converter Installation Kit

ES#2710271 - 8L9253232AKT - Catalytic Converter Installation Kit - Includes the necessary hardware and gaskets to install the catalytic converter - Assembled By ECS - Audi

Includes the necessary hardware and gaskets to install the catalytic converter 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2710271
Mfg#:
8L9253232AKT
Back Ordered
ON SALE!
$62.99

This product was last offered at the strikethrough price on
05-02-2026

$57.52 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Priced Each

ES#2834598 - 1K0998262F - Front Oxygen Sensor - Priced Each - Keep your engine running efficiently - NTK - Audi Volkswagen

Keep your engine running efficiently Engine code BEA

Brand:
NTK - Corporate Logo
ES#:
2834598
Mfg#:
1K0998262F
Back Ordered
$182.99

This product was last offered at the strikethrough price on
05-07-2026

$177.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Exhaust Emission Parts

Oxygen sensors, catalytic converters, and other critical emissions components not only cause Check Engine Lights when they fail, but they'll also keep you from registering your car. Make sure your emissions system is functioning properly so you can continue to drive your car legally.

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Manufacturer names and/or part numbers are used only for identification purposes.

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