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Audi B8/B8.5 S5 Quattro V8 4.2L

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Audi B8/B8.5 S5 Quattro V8 4.2L Exhaust Parts & Accessories

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Audi B8/B8.5 S5 Valved Cat Back Exhaust

ES#4488029 - 008553ECS02 - Audi B8/B8.5 S5 Valved Cat Back Exhaust - Experience your driving passion with our ECS Valved Exhaust System and control your sound with our valved muffler design - ECS - Audi

Experience your driving passion with our ECS Valved Exhaust System and control your sound with our valved muffler design affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4488029
Mfg#:
008553ECS02
In Stock
ON SALE!
Starting at $1207.21 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AWE Track Edition Exhaust System - Audi B8 S5 4.2L

ES#4728152 - AWEB8S542 - AWE Track Edition Exhaust System - Audi B8 S5 4.2L - Offers a powerful, raw V8 rumble. Still for the daily driver, this "noticeable" system lets them know you're coming. - AWE - Audi

Offers a powerful, raw V8 rumble. Still for the daily driver, this "noticeable" system lets them know you're coming. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AWE - Corporate Logo
ES#:
4728152
Mfg#:
AWEB8S542
In Stock
Starting at $1485.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

60mm Exhaust Sleeve With Dual Clamps - Priced Each

ES#2015539 - 1K0253141N - 60mm Exhaust Sleeve With Dual Clamps - Priced Each - Commonly found between mid-pipe and front muffler. 60x95mm - HJS - Audi BMW Volkswagen MINI

Commonly found between mid-pipe and front muffler. 60x95mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures the downpipes to the center muffler

Brand:
HJS - Corporate Logo
ES#:
2015539
Mfg#:
1K0253141N
In Stock
21% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$34.20

This product was last offered at the strikethrough price on
06-25-2026

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Catalytic Converter - Right

ES#2561225 - 8K0254250MXKT - Remanufactured Catalytic Converter - Right - Includes a $210 refundable core charge - Genuine Volkswagen Audi - Audi

Includes a $210 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to the 2010 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2561225
Mfg#:
8K0254250MXKT
Ships in 8 Business Days
$3292.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Catalytic Converter - Left

ES#2561222 - 8K0254200CXKT - Remanufactured Catalytic Converter - Left - Includes a $210 refundable core charge - Genuine Volkswagen Audi - Audi

Includes a $210 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to the 2010 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2561222
Mfg#:
8K0254200CXKT
Ships in 8 Business Days
$2742.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2.36" Downpipes

ES#2827359 - SSXAU223 - 2.36" Downpipes - Post-catalyst system. - Milltek Sport - Audi

Post-catalyst system. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
2827359
Mfg#:
SSXAU223
Back Ordered
Auto Notify
$487.99 USD
Free Shipping

AWE Touring Edition Exhaust System - Audi B8 S5 4.2L

ES#4728153 - AWEB8S542TR - AWE Touring Edition Exhaust System - Audi B8 S5 4.2L - The more civilized member of the AWE exhaust suite. In addition to the central muffler from the Track Exhaust, it features an x-pipe and AWE's proprietary 180 Technology resonators. - AWE - Audi

The more civilized member of the AWE exhaust suite. In addition to the central muffler from the Track Exhaust, it features an x-pipe and AWE's proprietary 180 Technology® resonators. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AWE - Corporate Logo
ES#:
4728153
Mfg#:
AWEB8S542TR
Ships on Jul 15, 2026
Starting at $1945.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Muffler Hanger - Priced Each

ES#4004612 - 8K0253144M - Rear Muffler Hanger - Priced Each - Secures the muffler to the vehicle - Rein - Audi

Secures the muffler to the vehicle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits the left and right side

Brand:
Rein - Corporate Logo
ES#:
4004612
Mfg#:
8K0253144M
In Stock
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Gasket - Priced Each

ES#4716227 - 8K0253115D - Exhaust Gasket - Priced Each - Seals the catalytic converter to the downpipe - Elring - Audi

Seals the catalytic converter to the downpipe affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
4716227
Mfg#:
8K0253115D
In Stock
$11.99

This product was last offered at the strikethrough price on
04-20-2026

$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

ES#2827315 - SSXAU134 - Cat-Back Exhaust System - Resonated - 2.36" stainless steel with quad GT 80mm polished tips - Milltek Sport - Audi

2.36" stainless steel with quad GT 80mm polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits manual transmission models only

Brand:
Milltek Sport - Corporate Logo
ES#:
2827315
Mfg#:
SSXAU134
Ships in 4 Business Days
$1723.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AWE Non-Resonated Downpipes - B8 S5 4.2L

ES#4043936 - 3215-11036 - AWE Non-Resonated Downpipes - B8 S5 4.2L - Eliminates an additional set of resonators from the car, to produce a louder and deeper tone to the exhaust note. - AWE - Audi

Eliminates an additional set of resonators from the car, to produce a louder and deeper tone to the exhaust note. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AWE - Corporate Logo
ES#:
4043936
Mfg#:
3215-11036
In Stock at Vendor
$765.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JHM High Flow Cat Downpipes With X-pipe - Without Integrated Baffle System

ES#4415918 - B8DPXHFC42L - JHM High Flow Cat Downpipes With X-pipe - Without Integrated Baffle System - Built as a direct OEM replacement, these downpipes are designed to increase low-end torque and maximize power throughout the entire RPM band - JH Motorsports - Audi

Built as a direct OEM replacement, these downpipes are designed to increase low-end torque and maximize power throughout the entire RPM band affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*Necked down to stock pipe size - To be used with factory exhaust components*

Brand:
JH Motorsports - Corporate Logo
ES#:
4415918
Mfg#:
B8DPXHFC42L
Ships on Jul 14, 2026
$1499.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated

ES#2827332 - SSXAU190 - Cat-Back Exhaust System - Non-Resonated - 2.36" stainless steel with quad GT 80mm polished tips - Milltek Sport - Audi

2.36" stainless steel with quad GT 80mm polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits manual transmission models only

Brand:
Milltek Sport - Corporate Logo
ES#:
2827332
Mfg#:
SSXAU190
Ships in 4 Business Days
$1487.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Exhaust Parts & Accessories

From stock exhaust system repairs to polished stainless steel performance exhaust, we have exhaust pipes, mufflers, resonators, and catalytic converters from the most respected suppliers in the business. Go loud, stay soft, look good with exhaust parts and systems from ECS Tuning.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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