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Audi A4 Performance Parts & Upgrades

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Cat-Back Exhaust System - Non-Resonated

ES#2827429 - SSXAU305 - Cat-Back Exhaust System - Non-Resonated - 2.5" stainless steel with dual 100mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual 100mm polished tips Fits 5 speed manual only

Brand:
Milltek Sport - Corporate Logo
ES#:
2827429
Mfg#:
SSXAU305
Ships in 3 Business Days
$1657.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated

ES#2827430 - SSXAU306 - Cat-Back Exhaust System - Non-Resonated - 2.5" stainless steel with dual 100mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual 100mm polished tips Fits 6 speed manual only

Brand:
Milltek Sport - Corporate Logo
ES#:
2827430
Mfg#:
SSXAU306
Ships in 3 Business Days
$1657.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Disc Brake Anti-Rattle Clip

ES#3457712 - 4M0615269B - Disc Brake Anti-Rattle Clip - Used to provide a smooth channel for disc brake pads to ride in and to reduce vibration and rattling. - Genuine Volkswagen Audi - Audi

Used to provide a smooth channel for disc brake pads to ride in and to reduce vibration and rattling.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3457712
Mfg#:
4M0615269B
Ships in 2 Business Days
9% off MSRP

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

$51.67

This product was last offered at the strikethrough price on
02-23-2026

$47.27 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Antenna Cover

ES#3191298 - 022696ECS01 - Carbon Fiber Antenna Cover - Add a unique, lightweight look to your ride - ECS - Audi

Add a unique, lightweight look to your ride 10X Entries For Our 25th Anniversary Sweepstakes!

Fits up to the 2012 model year

Brand:
ECS - Corporate Logo
ES#:
3191298
Mfg#:
022696ECS01
In Stock
ON SALE! SAVE 20%
$93.99

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

$75.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Density Line Adjustable Rear Toe Links

ES#3236103 - 034-407-1001 - Density Line Adjustable Rear Toe Links - Allows for precision alignment and the ability to reduce tire wear on lowered vehicles! - 034Motorsport - Audi

Allows for precision alignment and the ability to reduce tire wear on lowered vehicles!

Brand:
034Motorsport - Corporate Logo
ES#:
3236103
Mfg#:
034-407-1001
In Stock
$330.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Cat-Back Exhaust System

ES#3106950 - 140100 - Performance Cat-Back Exhaust System - 2" stainless steel with dual 3.19" polished stainless tips - Borla - Audi

2" stainless steel with dual 3.19" polished stainless tips

Brand:
Borla - Corporate Logo
ES#:
3106950
Mfg#:
140100
In Stock at Vendor
$1649.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Rear BBK (Big Brake Kit), JHM 300mm (11.8") for B5 A4-S4

ES#4046029 - BBK-1022x300x22 - Rear BBK (Big Brake Kit), JHM 300mm (11.8") for B5 A4-S4 - Finally a low cost rear Big Brake Kit - JH Motorsports - Audi

Finally a low cost rear Big Brake Kit Requires S4 rear calipers and caliper hangers to do this conversion

Brand:
JH Motorsports - Corporate Logo
ES#:
4046029
Mfg#:
BBK-1022X300X22
Ships in 10 Business Days
$824.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 4 Extreme Clutch Kit

ES#3098862 - k70205fssxKT - Stage 4 Extreme Clutch Kit - Designed for extreme power that needs to be put to the wheels. Conservatively rated at 525+ ft/lbs. - South Bend Clutch - Audi Volkswagen

Designed for extreme power that needs to be put to the wheels. Conservatively rated at 525+ ft/lbs.

Brand:
South Bend Clutch - Corporate Logo
ES#:
3098862
Mfg#:
K70205FSSXKT
Ships in 1 Business Day
$1629.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Big Brake Upgrade Kit - Stage 4 - 2-Piece Rotors (380x34)

ES#3221135 - 003883ecs01ktKT4 - Front Big Brake Upgrade Kit - Stage 4 - 2-Piece Rotors (380x34) - Everything necessary to upgrade your stage-3 RS caliper 365mm kit to the stage-4 380mm kit. - ECS - Audi

Everything necessary to upgrade your stage-3 RS caliper 365mm kit to the stage-4 380mm kit. 10X Entries For Our 25th Anniversary Sweepstakes!
For customers with existing 365mm ECS Stage 3 Brake Kit with Audi RS5 Calipers

Brand:
ECS - Corporate Logo
ES#:
3221135
Mfg#:
003883ECS01KTKT4
Ships on Dec 4, 2026
Auto Notify
ON SALE!
$1676.99

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

$1626.68 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Carrier Mount Bushing Insert Kit

ES#3132752 - 018327ECS01 - Rear Differential Carrier Mount Bushing Insert Kit - Decrease differential slop for better drivetrain response! - ECS - Audi

Decrease differential slop for better drivetrain response! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3132752
Mfg#:
018327ECS01
Ships on Aug 17, 2026
Auto Notify
ON SALE! SAVE 25%
$113.99

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

$85.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated

ES#2827433 - SSXAU309 - Cat-Back Exhaust System - Non-Resonated - 2.5" stainless steel with dual Jet 100mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual Jet 100mm polished tips Manual transmission only

Brand:
Milltek Sport - Corporate Logo
ES#:
2827433
Mfg#:
SSXAU309
Ships in 3 Business Days
$1618.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Twin Disc Clutch Kit - Race/Street - Steel Flywheel

ES#3178125 - 02027-TD7S-S - Twin Disc Clutch Kit - Race/Street - Steel Flywheel - 725 Series Twin Disc Clutch Kit - 1 ceramic rigid disc, and 1 fiber tuff rigid disc - Includes steel flywheel - Clutch Masters - Audi

725 Series Twin Disc Clutch Kit - 1 ceramic rigid disc, and 1 fiber tuff rigid disc - Includes steel flywheel

Brand:
Clutch Masters - Corporate Logo
ES#:
3178125
Mfg#:
02027-TD7S-S
Ships in 7 Business Days
$1609.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Twin Disc Clutch Kit - Race/Street - Aluminum Flywheel

ES#3178128 - 02027-TD7S-A - Twin Disc Clutch Kit - Race/Street - Aluminum Flywheel - 725 Series Twin Disc Clutch Kit - 1 ceramic rigid disc, and 1 fiber tuff rigid disc - Includes aluminum flywheel - Clutch Masters - Audi

725 Series Twin Disc Clutch Kit - 1 ceramic rigid disc, and 1 fiber tuff rigid disc - Includes aluminum flywheel

Brand:
Clutch Masters - Corporate Logo
ES#:
3178128
Mfg#:
02027-TD7S-A
Ships in 7 Business Days
$1609.99 USD
Free Shipping

RA4 240mm Clutch Conversion Kit - Stage 1

ES#5485 - RA4S1-STEEL - RA4 240mm Clutch Conversion Kit - Stage 1 - ECS RA4 Lightweight Flywheel with the Audi S4 clutch kit - ECS - Audi Volkswagen

ECS RA4 Lightweight Flywheel with the Audi S4 clutch kit 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5485
Mfg#:
RA4S1-STEEL
Ships on Sep 14, 2026
Auto Notify
ON SALE!
$846.99

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

$804.64 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front HPS Performance Brake Pad Set

ES#2092631 - HB641F.696 - Front HPS Performance Brake Pad Set - One of the best-selling all around brake pads - Hawk - Audi
ECS Tuning recommends this product.

One of the best-selling all around brake pads

Brand:
Hawk - Corporate Logo
ES#:
2092631
Mfg#:
HB641F.696
In Stock at Vendor
$200.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2-Piece Lightweight Rear Rotors - Pair (330x22)

ES#4045892 - 1024x330x22 - 2-Piece Lightweight Rear Rotors - Pair (330x22) - Shaves 11lbs of unsprung weight from the rear of your car while increasing braking performance. - JH Motorsports - Audi Porsche

Shaves 11lbs of unsprung weight from the rear of your car while increasing braking performance.

Brand:
JH Motorsports - Corporate Logo
ES#:
4045892
Mfg#:
1024X330X22
Ships in 2 Business Days
$799.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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