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Audi C7 S6 Quattro 4.0T Performance Engine Parts

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Cat-Back Exhaust System - Resonated

ES#2827451 - SSXAU332 - Cat-Back Exhaust System - Resonated - 2.76" stainless steel with quad 100mm polished tips - Milltek Sport - Audi

2.76" stainless steel with quad 100mm polished tips *This system deletes the factory exhaust valves - It is recommended to purchase valve delete modules SSXAU405 to prevent ECU fault codes*

Brand:
Milltek Sport - Corporate Logo
ES#:
2827451
Mfg#:
SSXAU332
Ships on Oct 30, 2026
$3306.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3" Hi-Flow Downpipes

ES#3432610 - SSXAU635 - 3" Hi-Flow Downpipes - Featuring Milltek Sport 100-cell Hi-Flow Sports Cats - Milltek Sport - Audi

Featuring Milltek Sport 100-cell Hi-Flow Sports Cats For use with OE Cat-Back exhaust - Requires stage 2 ECU remap and oxygen sensor extension leads

Brand:
Milltek Sport - Corporate Logo
ES#:
3432610
Mfg#:
SSXAU635
Ships on Oct 30, 2026
$5386.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo-Back Exhaust System - Non-Resonated Valvesonic

ES#4138637 - ssxau448554ktKT - Turbo-Back Exhaust System - Non-Resonated Valvesonic - Complete system includes Milltek 3" Hi-Flow downpipes & sports cats (SSXAU554) along with 2.76" stainless steel cat-back system with Quad 100mm black Cerakote tips - Milltek Sport - Audi

Complete system includes Milltek 3" Hi-Flow downpipes & sports cats (SSXAU554) along with 2.76" stainless steel cat-back system with Quad 100mm black Cerakote tips Requires stage 2 ECU remap

Brand:
Milltek Sport - Corporate Logo
ES#:
4138637
Mfg#:
SSXAU448554KTKT
Ships on Oct 30, 2026
$7186.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RaceChip RS With App Control

ES#4339430 - 917792 - RaceChip RS With App Control - Get up to +68 hp and +66 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip - Race Chip - Audi

Get up to +68 hp and +66 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip

Brand:
Race Chip - Corporate Logo
ES#:
4339430
Mfg#:
917792
Ships on Oct 30, 2026
$549.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RaceChip RS

ES#4339429 - 917791 - RaceChip RS - Get up to +68 hp and +66 through a safe and easy to use tuning module from RaceChip - Race Chip - Audi

Get up to +68 hp and +66 through a safe and easy to use tuning module from RaceChip

Brand:
Race Chip - Corporate Logo
ES#:
4339429
Mfg#:
917791
Ships on Oct 30, 2026
$499.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RaceChip GTS Black With App Control

ES#4339432 - 917796 - RaceChip GTS Black With App Control - Get up to +81 hp and +79 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip - Race Chip - Audi

Get up to +81 hp and +79 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip

Brand:
Race Chip - Corporate Logo
ES#:
4339432
Mfg#:
917796
Ships on Oct 30, 2026
$849.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RaceChip GTS Black

ES#4339431 - 917795 - RaceChip GTS Black - Get up to +81 hp and +79 lb-ft through a safe and easy to use tuning module from RaceChip - Race Chip - Audi

Get up to +81 hp and +79 lb-ft through a safe and easy to use tuning module from RaceChip

Brand:
Race Chip - Corporate Logo
ES#:
4339431
Mfg#:
917795
Ships on Oct 30, 2026
$799.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Street Performance Complete Exhaust System - Resonated

ES#3514347 - 769620 - Street Performance Complete Exhaust System - Resonated - Stainless steel system with high-flow downpipes/catalytic converters, resonated center-section, and rear mufflers with quad black tips - Supersprint - Audi

Stainless steel system with high-flow downpipes/catalytic converters, resonated center-section, and rear mufflers with quad black tips

Brand:
Supersprint - Corporate Logo
ES#:
3514347
Mfg#:
769620
Ships in 4 Business Days
$12220.99 USD
Free Shipping

Track Performance Complete Exhaust System - Non-Resonated

ES#3514368 - 769610 - Track Performance Complete Exhaust System - Non-Resonated - Stainless steel system with high-flow downpipes/catalytic converters, non-resonated center-section, and rear mufflers with quad black tips - Supersprint - Audi

Stainless steel system with high-flow downpipes/catalytic converters, non-resonated center-section, and rear mufflers with quad black tips

Brand:
Supersprint - Corporate Logo
ES#:
3514368
Mfg#:
769610
Ships in 4 Business Days
$11697.99 USD
Free Shipping

TGK Motorsport Flex Fuel Sensor Mount

ES#5526918 - TGK-0307-05 - TGK Motorsport Flex Fuel Sensor Mount - Purpose-built to give your GM / Continental / AC Delco Flex Fuel Sensor a solid, permanent home on the C7/C7.5 S6, RS6, S7, and RS7 platform. - TGK Motorsport - Audi

Purpose-built to give your GM / Continental / AC Delco Flex Fuel Sensor a solid, permanent home on the C7/C7.5 S6, RS6, S7, and RS7 platform.

Brand:
TGK Motorsport - Corporate Logo
ES#:
5526918
Mfg#:
TGK-0307-05
Ships in 6 Business Days
$99.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Intake Conversion - Stock Airbox To 4" Filter

ES#5526872 - TGK-0301-08 - Intake Conversion - Stock Airbox To 4" Filter - Eliminates bottlenecks with precision-machined billet aluminum construction and premium silicone couplers. - TGK Motorsport - Audi

Eliminates bottlenecks with precision-machined billet aluminum construction and premium silicone couplers.

Brand:
TGK Motorsport - Corporate Logo
ES#:
5526872
Mfg#:
TGK-0301-08
Ships in 6 Business Days
$119.99 USD
Free Shipping

TGK Motorsport Air Intake System - OEM Air Box

ES#5477612 - TGK-0301-03 - TGK Motorsport Air Intake System - OEM Air Box - Stealthy factory aesthetics meet high-velocity airflow for a sleeper build that keeps your engine bay looking completely stock. - TGK Motorsport - Audi

Stealthy factory aesthetics meet high-velocity airflow for a sleeper build that keeps your engine bay looking completely stock.

Brand:
TGK Motorsport - Corporate Logo
ES#:
5477612
Mfg#:
TGK-0301-03
Ships in 6 Business Days
$699.99 USD
Free Shipping

Intake System - 4" To 5" Filter Conversion

ES#5477616 - TGK-0301-07 - Intake System - 4" To 5" Filter Conversion - Transition from your existing 4" TGK Motorsport intake to the new 5" filter assembly with quick, hassle-free installation. - TGK Motorsport - Audi

Transition from your existing 4" TGK Motorsport intake to the new 5" filter assembly with quick, hassle-free installation. For customer who already own 4" TGK Intake System (ES5477610)

Brand:
TGK Motorsport - Corporate Logo
ES#:
5477616
Mfg#:
TGK-0301-07
Ships in 6 Business Days
$149.99 USD
Free Shipping

More About Performance Engine Parts

Our name says it all. That's why ECS Tuning is dedicated to providing our customers with the broadest possible assortment of engine tuning options at a range of prices and options to fit any budget. Start small and grow your car into something special with performance engine upgrades from a company that has tuning in its name and its blood.

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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