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Audi C7 S6 Quattro 4.0T

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Audi C7 S6 Quattro 4.0T Engine Parts & Accessories

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Expansion Tank Cap

ES#2815697 - 3B0121321 - Expansion Tank Cap - Keep proper pressure in your coolant system - Hamburg Tech - Audi Volkswagen

Keep proper pressure in your coolant system We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2815697
Mfg#:
3B0121321
Ships in 2 Business Days
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Mounting Bracket Bushing - Priced Each

ES#3678190 - 4H0121268 - Radiator Mounting Bracket Bushing - Priced Each - Bushing located below the lower radiator mounting bracket - Rein - Audi

Bushing located below the lower radiator mounting bracket 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3678190
Mfg#:
4H0121268
Ships in 4 Business Days
$3.15 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Drain Plug

ES#2872932 - N0160276 - Oil Drain Plug - Includes the crush washer. M14X1.5 - Febi - Audi Volkswagen

Includes the crush washer. M14X1.5 We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2872932
Mfg#:
N0160276
Ships on Nov 20, 2026
$4.99 USD
Free Shipping
on orders $49 and up

Drain Plug/Sealing Washer - Priced Each

ES#2872929 - N0138157 - Drain Plug/Sealing Washer - Priced Each - Replace with every oil service to prevent leaks. 14x20 - Febi - Audi Volkswagen Porsche

Replace with every oil service to prevent leaks. 14x20 We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2872929
Mfg#:
N0138157
Ships on Nov 20, 2026
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Blind - Priced Each

ES#2064553 - 4H0121223 - Radiator Blind - Priced Each - Cover that allows air to pass through when at speed - Genuine Volkswagen Audi - Audi

Cover that allows air to pass through when at speed

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2064553
Mfg#:
4H0121223
In Stock
ON SALE! SAVE 52%
$9.99

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

$4.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Drain Plug/Sealing Washer - Priced Each

Replace with every oil service to prevent leaks. 14x20

Brand:
Meistersatz - Corporate Logo
ES#:
4150983
Mfg#:
N0138157
Ships in 4 Business Days
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Stage 1 Performance Software - Fully Loaded *APR PLUS*

ES#3689890 - DPP-4.0T-APRPLUS - APR Stage 1 Performance Software - Fully Loaded *APR PLUS* - Higher peak numbers of 555 HP/609 FT-LBS on 91 octane - Up to 597 HP/668 FT-LBS on 100 octane race fuel *with APR PLUS limited powertrain warranty* - APR - Audi

Higher peak numbers of 555 HP/609 FT-LBS on 91 octane - Up to 597 HP/668 FT-LBS on 100 octane race fuel *with APR PLUS limited powertrain warranty* Call In Or Chat For Best Price!
This upgrade must be performed at ECS Tuning's facility in Ohio.

Brand:
APR - Corporate Logo
ES#:
3689890
Mfg#:
DPP-4.0T-APRPLUS
In Stock
$1599.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Water Pump

ES#4761659 - 8K0965567D - Auxiliary Water Pump - Water pump for the hybrid electric system - Genuine Volkswagen Audi - Audi

Water pump for the hybrid electric system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4761659
Mfg#:
8K0965567D
In Stock
Limited Qty Sale
$927.99

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

$853.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE Stage 3 ECU Tune With POWERlink Cable

ES#5503832 - IESOVP13 - IE Stage 3 ECU Tune With POWERlink Cable - Stage 3 ECU tune designed for RS7 turbo upgrades that unlocks up to 719 horsepower and 768 lb-ft of torque for C7/C7.5 Audi S6 and S7 models directly from your smartphone. - Integrated Engineering - Audi

Stage 3 ECU tune designed for RS7 turbo upgrades that unlocks up to 719 horsepower and 768 lb-ft of torque for C7/C7.5 Audi S6 and S7 models directly from your smartphone.

Brand:
Integrated Engineering - Corporate Logo
ES#:
5503832
Mfg#:
IESOVP13
In Stock
Starting at $179.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Stage 1 ECU Tune With POWERlink Cable

ES#5503827 - IESOVP11 - IE Stage 1 ECU Tune With POWERlink Cable - An Integrated Engineering (IE) Stage 1 ECU tune that unlocks up to 652 horsepower and 760 lb-ft of torque for C7/C7.5 Audi S6 and S7 models directly from your smartphone. - Integrated Engineering - Audi

An Integrated Engineering (IE) Stage 1 ECU tune that unlocks up to 652 horsepower and 760 lb-ft of torque for C7/C7.5 Audi S6 and S7 models directly from your smartphone.

Brand:
Integrated Engineering - Corporate Logo
ES#:
5503827
Mfg#:
IESOVP11
In Stock
Starting at $179.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Service Kit - 5w-30

Includes everything you need to service your VW/Audi 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5491581
Mfg#:
059198405XKT
In Stock
ON SALE!
$176.99

This product was last offered at the strikethrough price on
08-19-2026

$170.81 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Performance Valve Spring/Retainer Kit

ES#4699053 - IEVTWD1 - Performance Valve Spring/Retainer Kit - High quality performance valve springs and titanium retainers - Integrated Engineering - Audi

High quality performance valve springs and titanium retainers

Brand:
Integrated Engineering - Corporate Logo
ES#:
4699053
Mfg#:
IEVTWD1
Ships in 5 Business Days
$1154.99 USD
Free Shipping
on orders $49 and up

Resonated Cat Back With Titanium Tips

ES#4858765 - SSXAU561 - Resonated Cat Back With Titanium Tips - For anyone looking to improve their sound and aesthetics - Milltek Sport - Audi

For anyone looking to improve their sound and aesthetics

Brand:
Milltek Sport - Corporate Logo
ES#:
4858765
Mfg#:
SSXAU561
Ships in 6 Business Days
$3747.99 USD
Free Shipping
on orders $49 and up

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 in 6 Business Days
$3306.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

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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