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Audi 4M RS Q8 Quattro 4.0T

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Audi 4M RS Q8 Quattro 4.0T Performance Parts & Upgrades

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Particulate Filter-Back Performance Exhaust System - Non-Resonated

ES#4147867 - SSXAU899 - Particulate Filter-Back Performance Exhaust System - Non-Resonated - 3.00" Stainless, Non-Resonated (Louder) - No Cutting Required - Fits with OE Trims - Milltek Sport - Audi

3.00" Stainless, Non-Resonated (Louder) - No Cutting Required - Fits with OE Trims *For 2020+ RSQ8 4.0 V8 Bi-Turbo (OPF / GPF Equipped Models)*

Brand:
Milltek Sport - Corporate Logo
ES#:
4147867
Mfg#:
SSXAU899
Ships in 6 Business Days
ON SALE! SAVE 10%
$6763.99

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

$6087.12 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Urus/RSQ8 Twin High Performance Intercooler Set - Black

ES#4501331 - 8211 - Urus/RSQ8 Twin High Performance Intercooler Set - Black - Eliminate the stock plastic units that are prone to failing. - CSF - Audi

Eliminate the stock plastic units that are prone to failing. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
CSF - Corporate Logo
ES#:
4501331
Mfg#:
8211
Ships in 4 Business Days
$5995.00 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
Back Ordered
$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacers - 20mm (Pair)

ES#2167462 - 002411ECS03A20KT - ECS Wheel Spacers - 20mm (Pair) - Add some style with these wheel spacers - ECS - Audi BMW Porsche

Add some style with these wheel spacers 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2167462
Mfg#:
002411ECS03A20KT
In Stock
ON SALE! SAVE 15%
$140.99

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

$119.84 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacers - 5mm (Pair)

ES#2167469 - 002411ECS01A05Kt - ECS Wheel Spacers - 5mm (Pair) - Get the right size wheel spacer for your vehicle - ECS - Audi BMW Porsche

Get the right size wheel spacer for your vehicle 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2167469
Mfg#:
002411ECS01A05KT
In Stock
ON SALE! SAVE 25%
$137.99

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

$103.48 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Catback Exhaust System - 4M RSQ8

ES#4727731 - CBK0051 - APR Catback Exhaust System - 4M RSQ8 - Full length T304 stainless steel exhaust system that's sure to turn heads! - APR - Audi

Full length T304 stainless steel exhaust system that's sure to turn heads! Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
4727731
Mfg#:
CBK0051
Ships in 6 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.

$4556.99

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

$4049.99 USD
Free Shipping

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.

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

Rear Yellowstuff Brake Pads

ES#4871800 - DP42516R - Rear Yellowstuff Brake Pads - EBC's premium sport street pad that offers high friction levels and heat fade resistance - EBC - Audi

EBC's premium sport street pad that offers high friction levels and heat fade resistance 2X Entries Into Our F80 M3 Sweepstakes

Brand:
EBC - Corporate Logo
ES#:
4871800
Mfg#:
DP42516R
In Stock
5% off MSRP

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

$261.99

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

$248.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

DR Series Wheel Spacers (Black) - 12mm (1 Pair)

ES#3618485 - 2455668SW - DR Series Wheel Spacers (Black) - 12mm (1 Pair) - Get a new set of spacers and widen the stance of your vehicle - H&R - Audi MINI Porsche

Get a new set of spacers and widen the stance of your vehicle We Price Match - Give Us A Call or Chat!
Maximum factory hub height of up to 13.5mm. Inside wheel bevel = 4.0 x 45 degrees

Brand:
H&R - Corporate Logo
ES#:
3618485
Mfg#:
2455668SW
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.

$109.99

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

$98.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VTT “OBD-LOCK” ODB Port Locking Tool

ES#4766229 - VTT-OBD-LOCK - VTT OBD-LOCK ODB Port Locking Tool - Prevent Dealerships From Re-Flashing Your Car Against Your Wishes! - Vargas Turbo Technologies - Audi BMW Volkswagen Mercedes Benz Porsche

Prevent Dealerships From Re-Flashing Your Car Against Your Wishes! 2X Entries Into Our F80 M3 Sweepstakes
For Vehicles Produced After 1995

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4766229
Mfg#:
VTT-OBD-LOCK
In Stock
$97.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rennline 12mm Wheel Spacers - Black (Pair)

ES#4755583 - LS23.12MM - Rennline 12mm Wheel Spacers - Black (Pair) - Improve the look of your vehicle with spacers - Rennline - Audi Porsche

Improve the look of your vehicle with spacers

Brand:
Rennline - Corporate Logo
ES#:
4755583
Mfg#:
LS23.12MM
In Stock
$136.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

DR Series Wheel Spacers (Black) - 10mm (1 Pair)

ES#3618484 - 2055668SW - DR Series Wheel Spacers (Black) - 10mm (1 Pair) - Get that stance that you've been craving with these new spacers - H&R - Audi MINI Porsche

Get that stance that you've been craving with these new spacers We Price Match - Give Us A Call or Chat!
Maximum factory hub height of up to 13.5mm. Inside wheel bevel = 5.0 x 45 degrees

Brand:
H&R - Corporate Logo
ES#:
3618484
Mfg#:
2055668SW
Ships in 4 Business Days
10% off MSRP

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

$109.99

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

$98.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacers - 8mm (Pair)

ES#2167465 - 002411ECS01A08KT - ECS Wheel Spacers - 8mm (Pair) - Add some flair to your car with our new wheel spacers - ECS - Audi BMW Porsche

Add some flair to your car with our new wheel spacers 10X Entries Into Our F80 M3 Sweepstakes

Designed to be used with aftermarket wheels

Brand:
ECS - Corporate Logo
ES#:
2167465
Mfg#:
002411ECS01A08KT
In Stock
ON SALE!
$95.99

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

$91.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

M14 Titanium Wheel Stud Kit - Raw - Set Of 20

ES#4487743 - TISTUD20145RAW - M14 Titanium Wheel Stud Kit - Raw - 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#:
4487743
Mfg#:
TISTUD20145RAW
Ships in 6 Business Days
$339.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

DR Series Wheel Spacers - 10mm (1 Pair)

ES#2538522 - 2055668 - DR Series Wheel Spacers - 10mm (1 Pair) - Get that stance that you've been craving with these new spacers - H&R - Audi MINI Porsche

Get that stance that you've been craving with these new spacers We Price Match - Give Us A Call or Chat!
Maximum factory hub height of up to 13.5mm. Inside wheel bevel = 5.0 x 45 degrees

Brand:
H&R - Corporate Logo
ES#:
2538522
Mfg#:
2055668
Ships in 4 Business Days
10% off MSRP

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

$109.99

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

$98.99 USD
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.

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Manufacturer names and/or part numbers are used only for identification purposes.

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