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Audi S4 Performance Parts & Upgrades

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Motorsport Front Sway Bar End Links Pair

ES#2873007 - 034-402-4018 - Motorsport Front Sway Bar End Links Pair - Replace your sloppy rubber factory sway bar end links - 034Motorsport - Audi Volkswagen

Replace your sloppy rubber factory sway bar end links 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2873007
Mfg#:
034-402-4018
In Stock
$230.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Tunnel Brace - Red - Audi B8/Porsche Macan

ES#3569141 - 023780ECS01-02 - Billet Tunnel Brace - Red - Audi B8/Porsche Macan - Replace your small and weak stamped brace with heavy-duty billet aluminum! - ECS - Audi Porsche

Replace your small and weak stamped brace with heavy-duty billet aluminum! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3569141
Mfg#:
023780ECS01-02
In Stock
ON SALE! SAVE 25%
$174.99

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

$131.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Mirror Cap Set - Audi B6/B7/8P/C6

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!
$344.99

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

$333.90 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Locking Wheel Bolt Kit

ES#2795753 - 003901ECS45BB - Ball Seat Locking Wheel Bolt Kit - Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x45mm - ECS - Audi Volkswagen

Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x45mm 10X Entries Into Our F80 M3 Sweepstakes
For use with 15-17.5mm spacers

Brand:
ECS - Corporate Logo
ES#:
2795753
Mfg#:
003901ECS45BB
In Stock
ON SALE! SAVE 25%
$82.99

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

$62.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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

ES#2731437 - 2455571SW - DR Series Wheel Spacers (Black) - 12mm (1 Pair) - 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!
Fits hub height contour up to 13.50mm. Inside wheel bevel = 4.0 x 45 degrees

Brand:
H&R - Corporate Logo
ES#:
2731437
Mfg#:
2455571SW
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
10-01-2026

$98.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Open Carbon Fiber Intake System

ES#3579697 - CI100037 - APR Open Carbon Fiber Intake System - APR's ultimate intake system for the 3.0 TFSI - APR - Audi

APR's ultimate intake system for the 3.0 TFSI Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
3579697
Mfg#:
CI100037
EO#:
D-782-8
Ships in 8 Business Days
ON SALE! SAVE 10%
$579.99

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

$521.96 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacers - 5mm (Pair)

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 25%
$89.99

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

$67.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B6/B7 A4/S4 Front 32mm & Rear 25mm Sway Bar Kit

ES#4609000 - 000601LA01FRKT - Audi B6/B7 A4/S4 Front 32mm & Rear 25mm Sway Bar Kit - Reduce body roll and enhance handling! - ECS - Audi

Reduce body roll and enhance handling! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4609000
Mfg#:
000601LA01FRKT
Ships on Dec 14, 2026
ON SALE! SAVE 10%
$672.99

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

$605.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust

ES#2093800 - 15599 - Cat-Back Exhaust - 2.25" stainless steel with dual 3.5" polished stainless tips - Magnaflow - Audi

2.25" stainless steel with dual 3.5" polished stainless tips

Brand:
Magnaflow - Corporate Logo
ES#:
2093800
Mfg#:
15599
Back Ordered
$1813.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B8/C7 Center Differential Delete - NO WELDING NEEDED

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

X34 Carbon Fiber Full Intake System

ES#4005393 - 034-108-1029 - X34 Carbon Fiber Full Intake System - Delivers improved power, sound, and acceleration to B9 Audi S4/S5 owners in a clean OEM+ package! - 034Motorsport - Audi

Delivers improved power, sound, and acceleration to B9 Audi S4/S5 owners in a clean OEM+ package! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4005393
Mfg#:
034-108-1029
Ships in 2 Business Days
$1201.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Genuine Ignition Service Kit

ES#4475302 - 06M905606F5KT - Genuine Ignition Service Kit - Includes six Genuine VW/Audi coil packs and OEM spark plugs to service your ignition system - Genuine Volkswagen Audi - Audi

Includes six Genuine VW/Audi coil packs and OEM spark plugs to service your ignition system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4475302
Mfg#:
06M905606F5KT
In Stock
$720.29 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Cross-Drilled & Slotted 2-Piece Brake Rotors - Pair (380x34)

ES#2804479 - 003883ECS01A01KT - Front Cross-Drilled & Slotted 2-Piece Brake Rotors - Pair (380x34) - Replacement set for 380mm Stage 3-4 Big Brake Kits with Audi RS calipers - ECS - Audi

Replacement set for 380mm Stage 3-4 Big Brake Kits with Audi RS calipers 10X Entries Into Our F80 M3 Sweepstakes
*Replacement rotor set for customers that have our Stage 3/4 380mm kits with Audi RS Calipers*

Brand:
ECS - Corporate Logo
ES#:
2804479
Mfg#:
003883ECS01A01KT
In Stock
ON SALE!
$1229.99

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

$1193.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JHM HD Overdrive Lightweight Supercharger Crank Pulley (179mm)

ES#4045867 - 06E105251F-179mm - JHM HD Overdrive Lightweight Supercharger Crank Pulley (179mm) - Eliminates the problematic two-piece design and rubber isolator found in the stock crank pulley while reducing the mass of the motor's rotating assembly. - JH Motorsports - Audi Volkswagen Porsche

Eliminates the problematic two-piece design and rubber isolator found in the stock crank pulley while reducing the mass of the motor's rotating assembly. *To be used with 'Stage 2' software or software specific to a supercharger crank pulley upgrade*

Brand:
JH Motorsports - Corporate Logo
ES#:
4045867
Mfg#:
06E105251F-179MM
Ships in 2 Business Days
$324.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Exact-Fit Stainless Steel Brake Lines

ES#3450989 - 024671ECS02 - Rear Exact-Fit Stainless Steel Brake Lines - Rear set of DOT-compliant lines for an improved pedal feel - ECS - Audi Porsche

Rear set of DOT-compliant lines for an improved pedal feel 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3450989
Mfg#:
024671ECS02
In Stock
ON SALE! SAVE 10%
$103.99

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

$93.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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