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Audi A4 Performance Parts & Upgrades

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ES#5435522 - SUS-0010R - CTS Turbo Rear Sway Bar Upgrade - Eliminate body roll and unlock razor-sharp handling for your B8/B8.5 Audi with CTS Turbo's solid, two-way adjustable 25.4mm rear sway bar. - CTS - Audi

Eliminate body roll and unlock razor-sharp handling for your B8/B8.5 Audi with CTS Turbo's solid, two-way adjustable 25.4mm rear sway bar.

Brand:
CTS - Corporate Logo
ES#:
5435522
Mfg#:
SUS-0010R
Ships in 8 Business Days
$249.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4213518 - BSD1846 - Rear BSD Blade Brake Rotors - Pair (330x22) - Upgrade to the uniquely created blade slot designed for improved braking - EBC - Audi

Upgrade to the uniquely created blade slot designed for improved braking 2X Entries Into Our F80 M3 Sweepstakes

Brand:
EBC - Corporate Logo
ES#:
4213518
Mfg#:
BSD1846
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.

$436.99

This product was last offered at the strikethrough price on
11-05-2026

$414.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4045976 - B7A420TR04RNC - JHM K04-R Turbo (Non-Coated) - Turn your 2.0T into a monstrous street machine! - JH Motorsports  - Audi

Turn your 2.0T into a monstrous street machine!

Brand:
JH Motorsports  - Corporate Logo
ES#:
4045976
Mfg#:
B7A420TR04RNC
Ships in 6 Business Days
$1849.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2619502 - 35210099 - V3 Series Coilover Kit - With EDC Deactivation Kit - The ultimate in coilover technology, featuring double adjustable damping - KW Suspension - Audi

The ultimate in coilover technology, featuring double adjustable damping Fits avant models with factory EDC. Range of lowering is 0.8-1.5" in the front and 0.4-1.5" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2619502
Mfg#:
35210099
Back Ordered
$3694.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2619533 - 35210097 - V3 Series Coilover Kit - With EDC Deactivation Kit - The ultimate in coilover technology, featuring double adjustable damping - KW Suspension - Audi

The ultimate in coilover technology, featuring double adjustable damping Fits sedan models with factory EDC. Range of lowering is 0.8-1.5" in the front and 0.4-1.5" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2619533
Mfg#:
35210097
Back Ordered
$3694.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2804800 - 010253ECS01KT - Carbon Fiber Mirror Cap Set - Audi B6/B7/8P/C6 - Upgrade your exterior look - ECS - Audi

Upgrade your exterior look 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2804800
Mfg#:
010253ECS01KT
In Stock
ON SALE!
$333.90 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#517837 - DP3680C -  Rear RedStuff Performance Brake Pad Set - A high performance street pad, featuring Kevlar technology - EBC - Audi Volkswagen

A high performance street pad, featuring Kevlar technology 2X Entries Into Our F80 M3 Sweepstakes

Brand:
EBC - Corporate Logo
ES#:
517837
Mfg#:
DP3680C
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.

$109.45

This product was last offered at the strikethrough price on
08-07-2026

$103.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4375353 - 012535LA01 - B8/C7 Center Differential Delete - NO WELDING NEEDED - Easily allows the removal of center differential when converting your B8 S4 to RWD (rear wheel drive) from Quattro - ECS - Audi

Easily allows the removal of center differential when converting your B8 S4 to RWD (rear wheel drive) from Quattro 10X Entries Into Our F80 M3 Sweepstakes
100% reversible RWD kit when paired with our Axle Delete Plugs (ES4373491) Please make sure via VIN that

Brand:
ECS - Corporate Logo
ES#:
4375353
Mfg#:
012535LA01
In Stock
ON SALE! SAVE 20%
$452.99

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

$362.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3612517 - 284779 - JE Performance Forged Piston Set  - Includes rings, wrist pins, and pin locks - 82.5mm bore, 9.5:1 CR - JE Piston - Audi Volkswagen

Includes rings, wrist pins, and pin locks - 82.5mm bore, 9.5:1 CR

Brand:
JE Piston - Corporate Logo
ES#:
3612517
Mfg#:
284779
In Stock at Vendor
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2983808 - 46-183521 - Bilstein B12 Sportline Suspension System - Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - Audi

Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! 10X Entries Into Our F80 M3 Sweepstakes
For Sedan models. Lowers 45mm front, 35mm rear

Brand:
Bilstein - Corporate Logo
ES#:
2983808
Mfg#:
46-183521
Ships on Mar 19, 2027
$899.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#264115 - 54-10322 - Pro 5 R Air Intake System - Stage 2 - Add real power that you can feel - AFE - Audi

Add real power that you can feel CARB certified for sale in all 50 states

Brand:
AFE - Corporate Logo
ES#:
264115
Mfg#:
54-10322
EO#:
D-550-30
In Stock
20% off MSRP

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

$498.99

This product was last offered at the strikethrough price on
05-13-2026

$399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#250706 - 002403ECS01A05KT -  ECS Wheel Spacers - 5mm (Pair) - Exclusively built for your 57.1mm centerbore VW/Audi - ECS - Audi Volkswagen

Exclusively built for your 57.1mm centerbore VW/Audi 10X Entries Into Our F80 M3 Sweepstakes
Please measure your hub protrusion to ensure it will still make contact with the center of the wheel. See

Brand:
ECS - Corporate Logo
ES#:
250706
Mfg#:
002403ECS01A05KT
In Stock
ON SALE! SAVE 30%
$89.99

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

$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2864596 - 034-509-0005 - Motorsport Street Density Motor Mount Kit - The ultimate in performance and durability - 034Motorsport - Audi Volkswagen

The ultimate in performance and durability 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2864596
Mfg#:
034-509-0005
In Stock
$359.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3647472 - ST-AEVI-1103 - Supertech Inconel Exhaust Valve - 1.8T/2.7T - Priced Each  - Standard sized valve head diameter, factory triple groove keeper setup - Supertech - Audi Volkswagen

Standard sized valve head diameter, factory triple groove keeper setup *Valves priced individually - For 1.8T - qty 8 needed / For 2.7T - qty 12 needed - Please see long description for additional valve seal/keeper informati

Brand:
Supertech - Corporate Logo
ES#:
3647472
Mfg#:
ST-AEVI-1103
In Stock
$44.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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