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Audi C8 RS 6 Quattro 4.0T

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Audi C8 RS 6 Quattro 4.0T Performance Engine Parts

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IE Vent To Atmosphere Billet Catch Can - Universal Fitment

ES#2794762 - IEDIYUU18 - IE Vent To Atmosphere Billet Catch Can - Universal Fitment - Prevent crankcase oil fumes from condensing and filling your intake piping, turbo piping, intercooler, intake manifold, and breather system - Integrated Engineering - Audi BMW Volkswagen MINI

Prevent crankcase oil fumes from condensing and filling your intake piping, turbo piping, intercooler, intake manifold, and breather system

Brand:
Integrated Engineering - Corporate Logo
ES#:
2794762
Mfg#:
IEDIYUU18
Ships in 1 Business Day
$186.99 USD
Free Shipping

Universal Valved Muffler Kit - Single Inlet / Dual Outlet - 2.5" (63mm) - 1 Muffler

ES#5457423 - UVM63MMDUALOUTX1 - Universal Valved Muffler Kit - Single Inlet / Dual Outlet - 2.5" (63mm) - 1 Muffler - Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button

Brand:
Valvetronic Designs - Corporate Logo
ES#:
5457423
Mfg#:
UVM63MMDUALOUTX1
Ships in 1 Business Day
ON SALE! SAVE 10%
$399.99

This product was last offered at the strikethrough price on
08-25-2026

$359.99 USD
Free Shipping

Unitronic High Flow Air Filter

ES#4608973 - UH010-IN4 - Unitronic High Flow Air Filter - Designed to fit all Unitronic Carbon Fiber Intake Systems for the C8 RS6 and RS7 - Unitronic - Audi

Designed to fit all Unitronic Carbon Fiber Intake Systems for the C8 RS6 and RS7 Replacement filter for Unitronic C8 RS6 & RS7 carbon fiber intakes.

Brand:
Unitronic - Corporate Logo
ES#:
4608973
Mfg#:
UH010-IN4
Ships in 5 Business Days
$174.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water/Methanol Nozzle - 1.5GPH

ES#4476206 - SN0-N0150 - Water/Methanol Nozzle - 1.5GPH - Snow Performance Hyper-Sonic water-methanol injection nozzle - SnowPerformance - Audi BMW Volkswagen MINI

Snow Performance Hyper-Sonic water-methanol injection nozzle

Brand:
SnowPerformance - Corporate Logo
ES#:
4476206
Mfg#:
SN0-N0150
In Stock
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Flow Water Methanol Check Valve (Nylon Line)

ES#3469706 - sn0-8cv - High Flow Water Methanol Check Valve (Nylon Line) - Custom made with 100% methanol resistant stainless steel spring and EPDM seals ensuring zero corrosion even with high concentrations of methanol. - SnowPerformance - Audi BMW Volkswagen MINI

Custom made with 100% methanol resistant stainless steel spring and EPDM seals ensuring zero corrosion even with high concentrations of methanol.

Brand:
SnowPerformance - Corporate Logo
ES#:
3469706
Mfg#:
SN0-8CV
Ships in 6 Business Days
$31.99 USD
Free Shipping
on orders $49 and up

Snow Performance 7 Gallon Reservoir

ES#2826214 - 40016 - Snow Performance 7 Gallon Reservoir - incl. brackets/check valve/tubing - SnowPerformance - Audi BMW Volkswagen MINI

incl. brackets/check valve/tubing

Brand:
SnowPerformance - Corporate Logo
ES#:
2826214
Mfg#:
40016
In Stock at Vendor
$156.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Intake Filter

ES#4608756 - RF100018 - APR Intake Filter - Flows 8% more than stock without sacrificing air quality - APR - Audi

Flows 8% more than stock without sacrificing air quality Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
4608756
Mfg#:
RF100018
Ships in 4 Business Days
11% off MSRP

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

$175.99

This product was last offered at the strikethrough price on
08-28-2026

$155.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

PCV Adapter Kit For 2023 C8 4.0TT

ES#4683053 - UH040-IN0 - PCV Adapter Kit For 2023 C8 4.0TT - Used in conjunction with the Unitronic C8 RS6/RS7 intake for 2023+ models. - Unitronic - Audi

Used in conjunction with the Unitronic C8 RS6/RS7 intake for 2023+ models. Used in conjunction with the Unitronic C8 RS6/RS7 intake for 2023+ models.

Brand:
Unitronic - Corporate Logo
ES#:
4683053
Mfg#:
UH040-IN0
Ships in 5 Business Days
$99.99 USD
Free Shipping
on orders $49 and up

RaceChip XLR Throttle Controller With App Control

ES#4708643 - 999591 - RaceChip XLR Throttle Controller With App Control - Eliminate the delay in throttle response times with a simple XLR addition! Allows for Bluetooth connectivity for easy App based control. - Race Chip - Audi

Eliminate the delay in throttle response times with a simple XLR addition! Allows for Bluetooth connectivity for easy App based control.

Brand:
Race Chip - Corporate Logo
ES#:
4708643
Mfg#:
999591
Back Ordered
Auto Notify
$299.00 USD
Free Shipping
on orders $49 and up

Nozzle Mounting adapter for hose

ES#2826223 - 40110 - Nozzle Mounting adapter for hose - 1/8" NPT Threads, Can Only Be Used With Snow Performance Straight Style Nozzle Holders - SnowPerformance - Audi BMW Volkswagen MINI

1/8" NPT Threads, Can Only Be Used With Snow Performance Straight Style Nozzle Holders

Brand:
SnowPerformance - Corporate Logo
ES#:
2826223
Mfg#:
40110
In Stock
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Vortex Breather Catch Can

ES#4020131 - 034-101-4000 - Universal Vortex Breather Catch Can - Sold in a black powdercoated finish. - 034Motorsport - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Sold in a black powdercoated finish. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4020131
Mfg#:
034-101-4000
Ships in 2 Business Days
ON SALE! SAVE 10%
$153.00

This product was last offered at the strikethrough price on
08-17-2026

$137.70 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Forge Motorsport Valve Service Kit

ES#4781648 - FMDv004S - Forge Motorsport Valve Service Kit - Service kit for FMDv004 - Forge - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Service kit for FMDv004

Brand:
Forge - Corporate Logo
ES#:
4781648
Mfg#:
FMDV004S
Back Ordered
Auto Notify
ON SALE! SAVE 12%
$23.99

This product was last offered at the strikethrough price on
08-28-2026

$21.18 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Flow Fuel Pump - 270 LPH

ES#2730417 - 0580254044 - High Flow Fuel Pump - 270 LPH - Great for when more fuel is needed in a custom fueling application - URO - Audi Volkswagen Porsche

Great for when more fuel is needed in a custom fueling application 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2730417
Mfg#:
0580254044
Ships in 1 Business Day
$155.99

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

$130.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Snow Performance Water Tank Upgrade - 7gal

Braided SS Line/Brackets/Solenoid/4AN Fittings

Brand:
SnowPerformance - Corporate Logo
ES#:
4680249
Mfg#:
SN0-40016-BRD
Ships in 2 Business Days
$260.99 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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