Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle Clear

Audi C8 RS 6 Quattro 4.0T

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Audi C8 RS 6 Quattro 4.0T
Your Vehicle Audi C8 RS 6 Quattro 4.0T
Change Clear

Audi C8 RS 6 Quattro 4.0T Performance Parts & Upgrades

Sort By
Filter By
Return to Top

APR Catback Exhaust System - RS6 / RS7 (C8)

ES#5396360 - CBK0050 - APR Catback Exhaust System - RS6 / RS7 (C8) - Unleash your C8 RS6/RS7s full potential with APRs premium catback exhaustmore power, an aggressive RS growl on demand, zero drone, and stunning diamond black tips in one uncompromising system. - APR - Audi

Unleash your C8 RS6/RS7’s full potential with APR’s premium catback exhaust—more power, an aggressive RS growl on demand, zero drone, and stunning diamond black tips in one uncompromising system. Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
5396360
Mfg#:
CBK0050
Back Ordered
11% off MSRP

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

$3487.99

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

$3099.99 USD
Free Shipping

Wheel Spacer & Bolt Kit - 5mm With Black Conical Seat Bolts

ES#2748279 - 6-ECS-015 - Wheel Spacer & Bolt Kit - 5mm With Black Conical Seat Bolts - Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels - ECS - Audi

Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels 10X Entries Into Our F80 M3 Sweepstakes
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748279
Mfg#:
6-ECS-015
In Stock
ON SALE! SAVE 25%
$140.99

This product was last offered at the strikethrough price on
06-13-2026

$105.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

M14 Wheel Stud Kit - Black - Set Of 20

ES#4487785 - VAG-STUD-KIT-20 - M14 Wheel Stud Kit - Black - Set Of 20 - M14x1.5x75mm with conical nuts - Vargas Turbo Technologies - Audi Volkswagen

M14x1.5x75mm with conical nuts 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4487785
Mfg#:
VAG-STUD-KIT-20
Ships in 7 Business Days
$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Large Bore Downpipes And Hi-Flow Sports Cats

ES#4339829 - SSXAU909 - Large Bore Downpipes And Hi-Flow Sports Cats - Featuring Milltek Sport Hi-Flow sports cat, fits to Milltek Sport Cat Back systems. - Milltek Sport - Audi

Featuring Milltek Sport Hi-Flow sports cat, fits to Milltek Sport Cat Back systems. Requires stage 2 software

Brand:
Milltek Sport - Corporate Logo
ES#:
4339829
Mfg#:
SSXAU909
Ships in 5 Business Days
ON SALE! SAVE 10%
$6486.99

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

$5837.71 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Large Bore Downpipes With High Flow Sport Cats

Featuring Milltek Sport Hi-Flow sports cat, fits with OE cat-back system. Requires stage 2 software

Brand:
Milltek Sport - Corporate Logo
ES#:
4339825
Mfg#:
SSXAU910
Ships in 5 Business Days
ON SALE! SAVE 10%
$6467.99

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

$5820.37 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 10mm With Ball Seat Bolts

ES#2603073 - 002411ECS02AKT2 - Wheel Spacer & Bolt Kit - 10mm With Ball Seat Bolts - Complete kit for two wheels, includes everything you need to install spacers - ECS - Audi

Complete kit for two wheels, includes everything you need to install spacers 10X Entries Into Our F80 M3 Sweepstakes
Fits OE wheels, or wheels that use OE ball seat wheel bolts
Recommended only for use on rear wheels due to front hub clearance

Brand:
ECS - Corporate Logo
ES#:
2603073
Mfg#:
002411ECS02AKT2
Back Ordered
Auto Notify
ON SALE!
$140.99

This product was last offered at the strikethrough price on
06-13-2026

$133.94 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Catback Exhaust For Audi C8 RS6 & RS7

ES#4708092 - IEEXCY1 - IE Catback Exhaust For Audi C8 RS6 & RS7 - Of course, a loud V8 sounds great, but what's the point if you have to endure a headache-inducing drone? Integrated's own DroneTrap technology selectively delivers the exhaust notes you want. - Integrated Engineering - Audi

Of course, a loud V8 sounds great, but what's the point if you have to endure a headache-inducing drone? Integrated's own DroneTrap technology selectively delivers the exhaust notes you want.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4708092
Mfg#:
IEEXCY1
Ships in 4 Business Days
$5564.99 USD
Free Shipping

DR Series Wheel Spacers - 15mm (1 Pair)

ES#275 - 3055665 - DR Series Wheel Spacers - 15mm (1 Pair) - Get a new set of spacers and widen the stance of your vehicle - H&R - Audi Mercedes Benz MINI Porsche

Get a new set of spacers and widen the stance of your vehicle We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
275
Mfg#:
3055665
In Stock
14% off MSRP

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

$119.99

This product was last offered at the strikethrough price on
05-12-2026

$102.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Wheel Spacer Pair - 10mm

ES#4020172 - 034-604-7006 - 034Motorsport Wheel Spacer Pair - 10mm - Designed to fit most Audi & Volkswagen vehicles with a 66.5mm center bore and 5x112mm wheel bolt patterns. - 034Motorsport - Audi

Designed to fit most Audi & Volkswagen vehicles with a 66.5mm center bore and 5x112mm wheel bolt patterns. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4020172
Mfg#:
034-604-7006
Ships in 3 Business Days
ON SALE! SAVE 14%
$98.00

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

$83.79 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AWE SwitchPath Exhaust - Audi C8 RS 6/RS 7 - Diamond Black RS-Style Tips

ES#4716313 - 3025-33776 - AWE SwitchPath Exhaust - Audi C8 RS 6/RS 7 - Diamond Black RS-Style Tips - Comprised of 3-inch U.S.-sourced T304L stainless steel featuring a bespoke, straight-through center resonator featuring AWEs proprietary drone-canceling 180 Technology, tuned specifically for the 4.0TT. - AWE - Audi

Comprised of 3-inch U.S.-sourced T304L stainless steel featuring a bespoke, straight-through center resonator featuring AWE’s proprietary drone-canceling 180 Technology®, tuned specifically for the 4.0TT. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
AWE - Corporate Logo
ES#:
4716313
Mfg#:
3025-33776
In Stock at Vendor
$5195.00 USD
Free Shipping

DRA Series Trak Spacers - 25mm (1 Pair) Black

ES#2731115 - 50556651SW - DRA Series Trak Spacers - 25mm (1 Pair) Black - Get that stance that you've been craving with these new spacers - H&R - Audi Mercedes Benz Porsche

Get that stance that you've been craving with these new spacers We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
2731115
Mfg#:
50556651SW
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.

$189.99

This product was last offered at the strikethrough price on
07-01-2026

$170.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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

EMD Auto 15mm Wheel Spacers - Pair (With Bolts)

ES#4042997 - EMD-SPACER15665B - EMD Auto 15mm Wheel Spacers - Pair (With Bolts) - Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore - Emmanuele Design - Audi

Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore

Brand:
Emmanuele Design - Corporate Logo
ES#:
4042997
Mfg#:
EMD-SPACER15665B
In Stock
$110.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 12.5mm With Ball Seat Bolts

ES#2603075 - 002411ECS02AKT3 - Wheel Spacer & Bolt Kit - 12.5mm With Ball Seat Bolts - Complete kit for two wheels, includes everything you need to install spacers - ECS - Audi

Complete kit for two wheels, includes everything you need to install spacers 10X Entries Into Our F80 M3 Sweepstakes
Fits OEM wheels, or wheels that use OEM ball seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2603075
Mfg#:
002411ECS02AKT3
Back Ordered
Auto Notify
ON SALE! SAVE 25%
$167.99

This product was last offered at the strikethrough price on
06-13-2026

$125.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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
$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

More About Performance Parts & Upgrades

All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.

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

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings