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Audi S4 Performance Parts & Upgrades

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Density Line Lower Control Arm Kit

ES#3183552 - 034-401-1021KT - Density Line Lower Control Arm Kit - Includes 034Motorsport Density line lower control arms & necessary hardware - Assembled By ECS - Audi

Includes 034Motorsport Density line lower control arms & necessary hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3183552
Mfg#:
034-401-1021KT
Ships in 3 Business Days
$525.96

This product was last offered at the strikethrough price on
08-12-2026

$501.80 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Grille Accent Set - Audi B9 A4/S4

ES#3420220 - 024314ECS01 - Carbon Fiber Grille Accent Set - Audi B9 A4/S4 - Hand-laid carbon fiber to upgrade your exterior styling - ECS - Audi

Hand-laid carbon fiber to upgrade your exterior styling 10X Entries Into Our F80 M3 Sweepstakes

Fits up to 2019 model year with *pre-facelift* front bumpers

Brand:
ECS - Corporate Logo
ES#:
3420220
Mfg#:
024314ECS01
In Stock
ON SALE! SAVE 65%
$576.99

This product was last offered at the strikethrough price on
05-02-2026

$200.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sport & Sound Cat-Back Exhaust System - Resonated

ES#3514254 - 764440 - Sport & Sound Cat-Back Exhaust System - Resonated - Stainless steel resonated cat-back exhaust system with dual round, polished tips - Supersprint - Audi

Stainless steel resonated cat-back exhaust system with dual round, polished tips

Brand:
Supersprint - Corporate Logo
ES#:
3514254
Mfg#:
764440
In Stock
ON SALE! SAVE 67%
$3055.99

This product was last offered at the strikethrough price on
05-02-2026

$1000.00 USD
Free Shipping

Carbon Fiber Rear Valance w/Rear Splitter

ES#3142795 - AS410-CFRVP - Carbon Fiber Rear Valance w/Rear Splitter - Delivers an unmatched combination of aggressiveness and luxury elegance - Deval - Audi

Delivers an unmatched combination of aggressiveness and luxury elegance Fits up to the 2012 model year (pre-facelift)

Brand:
Deval - Corporate Logo
ES#:
3142795
Mfg#:
AS410-CFRVP
Special Order: No Guaranteed ETA
$1000.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Inverted-Damper Performance Coilover System - Audi B8/B8.5

ES#4900307 - 026116LA01 - Inverted-Damper Performance Coilover System - Audi B8/B8.5 - Increases rigidity and reduces flex under cornering and braking loads - ECS - Audi

Increases rigidity and reduces flex under cornering and braking loads 10X Entries Into Our F80 M3 Sweepstakes
Vehicles equipped with Electronic Damping Control (EDC) will lose shock dampening and receive a system error code with coilover systems.

Brand:
ECS - Corporate Logo
ES#:
4900307
Mfg#:
026116LA01
In Stock
ON SALE! SAVE 23%
$1299.99

This product was last offered at the strikethrough price on
08-14-2026

$999.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

TGK Motorsport Front And Rear Sway Bar Kit

ES#5477703 - TGK-0412-03 - TGK Motorsport Front And Rear Sway Bar Kit - Includes 28MM Front and 25.4MM Rear Sway Bar. - TGK Motorsport - Audi

Includes 28MM Front and 25.4MM Rear Sway Bar.

Brand:
TGK Motorsport - Corporate Logo
ES#:
5477703
Mfg#:
TGK-0412-03
Ships in 5 Business Days
$499.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Valve Spring Kit - Priced Per Spring

ES#4690063 - MS100258 - APR Valve Spring Kit - Priced Per Spring - Lighter, stiffer, and supports higher revving! - APR - Audi Volkswagen

Lighter, stiffer, and supports higher revving! Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
4690063
Mfg#:
MS100258
Ships in 5 Business Days
ON SALE! SAVE 11%
$61.99

This product was last offered at the strikethrough price on
09-28-2026

$55.31 USD
Free Shipping

Front 2-Piece Brake Rotors - Pair

Replace your rotors with 2-piece rotors from Giro Disc.

Brand:
Girodisc - Corporate Logo
ES#:
4608925
Mfg#:
A1-130
Ships in 2 Business Days
$995.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Rear Sway Bar End Links - Pair

ES#2864590 - 034-402-4005 - Adjustable Rear Sway Bar End Links - Pair - Replace your flimsy, sloppy OEM sway bar end links with these performance engineered adjustable spherical endlinks - 034Motorsport - Audi

Replace your flimsy, sloppy OEM sway bar end links with these performance engineered adjustable spherical endlinks 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2864590
Mfg#:
034-402-4005
Ships in 2 Business Days
$248.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Brake Kit - Stage 1 - 2-Piece Cross Drilled & Slotted Rotors (345x30)

ES#2730485 - 8K0698301MKT4 - Front Brake Kit - Stage 1 - 2-Piece Cross Drilled & Slotted Rotors (345x30) - Upgrade your brake system with 2-piece rotors and stainless steel lines - ECS - Audi

Upgrade your brake system with 2-piece rotors and stainless steel lines 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2730485
Mfg#:
8K0698301MKT4
Back Ordered
ON SALE!
$1043.99

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

$991.79 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

DR Series Wheel Spacers (Black) - 10mm (Pair) - Version 2

ES#2731176 - 2055571BSW - DR Series Wheel Spacers (Black) - 10mm (Pair) - Version 2 - Fine tune your stance and improve handling - H&R - Audi Volkswagen

Fine tune your stance and improve handling We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
2731176
Mfg#:
2055571BSW
Ships in 3 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
10-01-2026

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

Bilstein B12 Pro-Kit Suspension System

ES#2983899 - 46-189769 - Bilstein B12 Pro-Kit 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
2X Entries For Our Spin To Win Sweepstakes!
Vehicles equipped with Electronic Damping Control (EDC) will lose shock dampening and receive a system error code with coilover systems

Brand:
Bilstein - Corporate Logo
ES#:
2983899
Mfg#:
46-189769
Special Order: No Guaranteed ETA
$969.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ST Adjustable Lowering Springs

ES#4045183 - 27310075 - ST Adjustable Lowering Springs - Allows individual ride height adjustment at each corner of your vehicle - Make your stock suspension height adjustable, without compromise! - Suspension Techniques - Audi

Allows individual ride height adjustment at each corner of your vehicle - Make your stock suspension height adjustable, without compromise! Fits coupe models - Average lowering of 0.6"-1.8" Front, 0.6"-1.8" Rear

Brand:
Suspension Techniques - Corporate Logo
ES#:
4045183
Mfg#:
27310075
Back Ordered
$969.00 USD
Free Shipping

Special Active Rear Shock - Priced Each

ES#4698697 - 82451407 - Special Active Rear Shock - Priced Each - Superior handling without compromising ride quality - Koni - Audi

Superior handling without compromising ride quality For vehicles without electronic suspension

Brand:
Koni - Corporate Logo
ES#:
4698697
Mfg#:
82451407
Back Ordered
38% off MSRP

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

$258.99

This product was last offered at the strikethrough price on
10-23-2026

$159.99 USD
Free Shipping
on orders $49 and up

RS4 Clutch Kit With 034Motorsport Billet Flywheel

ES#3999994 - 034-503-1009KT - RS4 Clutch Kit With 034Motorsport Billet Flywheel - Featuring the 034Motorsport Billet Lightweight Flywheel, paired with a LUK OE B7 RS4 clutch kit, and associated hardware - Assembled By ECS - Audi

Featuring the 034Motorsport Billet Lightweight Flywheel, paired with a LUK OE B7 RS4 clutch kit, and associated hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3999994
Mfg#:
034-503-1009KT
Back Ordered
$1008.99

This product was last offered at the strikethrough price on
06-29-2026

$956.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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