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Audi C8 RS 7 Quattro 4.0T

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Audi C8 RS 7 Quattro 4.0T Performance Engine Parts

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Resonated Axle-Back With Polished Oval Trims

ES#4865885 - SSXAU862 - Resonated Axle-Back With Polished Oval Trims - 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#:
4865885
Mfg#:
SSXAU862
Ships in 5 Business Days
ON SALE! SAVE 10%
$5633.99

This product was last offered at the strikethrough price on
08-29-2026

$5070.20 USD
Free Shipping

Unitronic Performance Downpipes For C8 RS6/RS7

ES#4623241 - UH061-EXA - Unitronic Performance Downpipes For C8 RS6/RS7 - Paired with Unitronic Stage 2 Performance Software and other supporting bolt-ons, these Performance Downpipes help yield up to 819HP / 760LB-FT. - Unitronic - Audi

Paired with Unitronic Stage 2 Performance Software and other supporting bolt-ons, these Performance Downpipes help yield up to 819HP / 760LB-FT.

Brand:
Unitronic - Corporate Logo
ES#:
4623241
Mfg#:
UH061-EXA
Special Order: No Guaranteed ETA
Auto Notify
$4849.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Performance Software - With UniCONNECT+ Cable

ES#4465412 - C8-4.0T-UC - Unitronic Performance Software - With UniCONNECT+ Cable - Choose the stage that meets your power goals! - Unitronic - Audi

Choose the stage that meets your power goals! This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th

Brand:
Unitronic - Corporate Logo
ES#:
4465412
Mfg#:
C8-4.0T-UC
In Stock
ON SALE!
Starting at $1614.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbosmart WG45 Gen V Hyper-Gate 45

ES#4643523 - ts-0553-1002 - Turbosmart WG45 Gen V Hyper-Gate 45 - More features, options and performance than any other gate. - TurboSmart - Audi BMW Volkswagen

More features, options and performance than any other gate.

Brand:
TurboSmart - Corporate Logo
ES#:
4643523
Mfg#:
TS-0553-1002
Ships on Sep 25, 2026
10% off MSRP

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

$518.99

This product was last offered at the strikethrough price on
09-09-2026

$467.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Intercooler Upgrade - Black Thermal Dispersion

ES#4615846 - UH025-ICA - Unitronic Intercooler Upgrade - Black Thermal Dispersion - The most efficient fin in the high-performance industry, with performance similar to PWRs Formula-1 grade race intercooler cores. - Unitronic - Audi

The most efficient fin in the high-performance industry, with performance similar to PWR’s Formula-1 grade race intercooler cores.

Brand:
Unitronic - Corporate Logo
ES#:
4615846
Mfg#:
UH025-ICA
Ships in 5 Business Days
$4195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbosmart Audi 4L V8 TFSI BOV Kompact Dual Port VR30

Plug and play diverter valve upgrade with dual port design

Brand:
TurboSmart - Corporate Logo
ES#:
5341446
Mfg#:
TS-0223-1064
In Stock
10% off MSRP

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

$659.99

This product was last offered at the strikethrough price on
09-09-2026

$593.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Plus ECU Upgrade - 4.0T EA825 V8 (RS)

ES#4405006 - ECU40TEA825RSAPR - APR Plus ECU Upgrade - 4.0T EA825 V8 (RS) - Max gains of +112 AWHP and +145 AWFT-LBS and a Limited Powertrain Warranty - APR - Audi

Max gains of +112 AWHP and +145 AWFT-LBS and a Limited Powertrain Warranty Call In Or Chat For Best Price!
This upgrade must be performed at ECS Tuning's facility in Ohio.
For vehicles up through the 2023 model year only.

Brand:
APR - Corporate Logo
ES#:
4405006
Mfg#:
ECU40TEA825RSAPR
In Stock
$3999.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Bosch 044 High Flow Fuel Pump - 270 LPH

ES#514125 - 0580254044 - Bosch 044 High Flow Fuel Pump - 270 LPH - Great for when more fuel is needed in a custom fueling application - Bosch - Audi Volkswagen

Great for when more fuel is needed in a custom fueling application We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
514125
Mfg#:
0580254044
In Stock
$230.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Intake System - Gloss Carbon Fiber

ES#4608985 - UH031-INA-54 - Carbon Fiber Intake System - Gloss Carbon Fiber - Alleviate pre-compressor restrictions with the factory system, netting up to 99.8% more flow than stock. - Unitronic - Audi

Alleviate pre-compressor restrictions with the factory system, netting up to 99.8% more flow than stock. For use with OEM style turbos.

Brand:
Unitronic - Corporate Logo
ES#:
4608985
Mfg#:
UH031-INA-54
Ships in 5 Business Days
$3549.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Intake System - Matte Carbon Fiber - OEM Turbos

ES#4608986 - UH032-INA-54 - Carbon Fiber Intake System - Matte Carbon Fiber - OEM Turbos - Alleviate pre-compressor restrictions with the factory system, netting up to 99.8% more flow than stock. - Unitronic - Audi

Alleviate pre-compressor restrictions with the factory system, netting up to 99.8% more flow than stock. For use with OEM style turbos.

Brand:
Unitronic - Corporate Logo
ES#:
4608986
Mfg#:
UH032-INA-54
Ships in 5 Business Days
$3549.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AEM V3 Water/Methanol Injector Kit (Qty 2)

ES#4307641 - 30-3313 - AEM V3 Water/Methanol Injector Kit (Qty 2) - Swappable swirl generators for 250/500/1000cc configurations! - AEM Electronics - Audi BMW Volkswagen MINI

Swappable swirl generators for 250/500/1000cc configurations!

Brand:
AEM Electronics - Corporate Logo
ES#:
4307641
Mfg#:
30-3313
In Stock
12% off MSRP

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

$129.99

This product was last offered at the strikethrough price on
09-09-2026

$114.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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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