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Audi S4 Performance Parts & Upgrades

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Front Big Brake Kit - Stage 2 - Slotted Rotors (345x30)

ES#2952040 - 014366ECS03KT - Front Big Brake Kit - Stage 2 - Slotted Rotors (345x30) - Upgrade your brake system to the 4-piston Brembo Q5 calipers. Includes ECS V5 brake rotors. - ECS - Audi

Upgrade your brake system to the 4-piston Brembo Q5 calipers. Includes ECS V5 brake rotors. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2952040
Mfg#:
014366ECS03KT
Back Ordered
$2211.11

This product was last offered at the strikethrough price on
07-23-2026

$2063.54 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Front Big Brake Kit - Stage 2 - No Rotors

ES#2952355 - 014366ECS04KT - Front Big Brake Kit - Stage 2 - No Rotors - Upgrade your brake system to the 4-piston Brembo Q5 calipers - ECS - Audi

Upgrade your brake system to the 4-piston Brembo Q5 calipers 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2952355
Mfg#:
014366ECS04KT
Back Ordered
$1565.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Front Big Brake Kit - Stage 3 - 2-Piece Scalloped Rotors (365x34)

ES#2739809 - 8T0615108KT2 - Front Big Brake Kit - Stage 3 - 2-Piece Scalloped Rotors (365x34) - Featuring RS5 8-piston calipers, ECS stainless steel lines, ECS 2-piece Tru-Float scalloped rotors & Hawk HPS pads - ECS - Audi

Featuring RS5 8-piston calipers, ECS stainless steel lines, ECS 2-piece Tru-Float scalloped rotors & Hawk HPS pads 10X Entries Into Our F80 M3 Sweepstakes
Please download the installation template to confirm this brake kit will fit behind your factory or after

Brand:
ECS - Corporate Logo
ES#:
2739809
Mfg#:
8T0615108KT2
Back Ordered
$5072.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

KW Clubsport Kit - 2 Way Adjustable Dampening

ES#2951326 - 35210765kt - KW Clubsport Kit - 2 Way Adjustable Dampening - Height adjustable from 0.4" to 1.5" (front) and 0.4" to 1.5" (rear) - KW Suspension - Audi

Height adjustable from 0.4" to 1.5" (front) and 0.4" to 1.5" (rear) Cabriolet models only

Brand:
KW Suspension - Corporate Logo
ES#:
2951326
Mfg#:
35210765KT
Back Ordered
$3894.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

V2 Series Coilover Kit - With EDC Deactivation Kit

ES#2619630 - 15210099 - V2 Series Coilover Kit - With EDC Deactivation Kit - Variant 2 coilovers offer sport handling with adjustable rebound dampening - KW Suspension - Audi

Variant 2 coilovers offer sport handling with adjustable rebound dampening 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#:
2619630
Mfg#:
15210099
Back Ordered
$3034.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KW Clubsport Kit - 2 Way Adjustable Dampening

ES#2951321 - 35210735kt - KW Clubsport Kit - 2 Way Adjustable Dampening - Height adjustable from 0.4" to 1.5" (front) and 0.4" to 1.5" (rear) - KW Suspension - Audi

Height adjustable from 0.4" to 1.5" (front) and 0.4" to 1.5" (rear) Sedan & Avant models only

Brand:
KW Suspension - Corporate Logo
ES#:
2951321
Mfg#:
35210735KT
Back Ordered
$3894.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KW Street Comfort Coilover Kit

ES#3427394 - 18010097KT - KW Street Comfort Coilover Kit - Street Comfort coilovers offer sport handling with adjustable ride height - KW Suspension - Audi

Street Comfort coilovers offer sport handling with adjustable ride height For vehicles with factory electronic damping control.

Brand:
KW Suspension - Corporate Logo
ES#:
3427394
Mfg#:
18010097KT
Back Ordered
$2824.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

V1 Series Coilover System

ES#3020358 - 10210035 - V1 Series Coilover System - The best balance between sporty driving and comfort - KW Suspension - Audi

The best balance between sporty driving and comfort Fits sedan models only.
Fits sedan models only. Range of lowering is 0.4-1.5" in the front and rear.

Brand:
KW Suspension - Corporate Logo
ES#:
3020358
Mfg#:
10210035
Back Ordered
$2114.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sport Shocks & Struts Set

ES#4698699 - 82411317sportKT - Sport Shocks & Struts Set - Tighten up your Audi with these Koni struts - Koni - Audi

Tighten up your Audi with these Koni struts Vehicle will lose Adaptive Dampening Control

Brand:
Koni - Corporate Logo
ES#:
4698699
Mfg#:
82411317SPORTKT
Back Ordered
$899.99

This product was last offered at the strikethrough price on
08-13-2026

$898.99 USD

Cat-Back Exhaust System

ES#2613791 - 16769 - Cat-Back Exhaust System - 2.5" stainless steel with dual 3.5" polished stainless tips - Magnaflow - Audi

2.5" stainless steel with dual 3.5" polished stainless tips Avant models only

Brand:
Magnaflow - Corporate Logo
ES#:
2613791
Mfg#:
16769
Back Ordered
$1196.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Revo Big Brake Kit - Red - (380x32)

ES#4499828 - RA841B200600 - Revo Big Brake Kit - Red - (380x32) - The Revo Big Brake Kit comes complete with everything required to upgrade your stopping power. - REVO - Audi

The Revo Big Brake Kit comes complete with everything required to upgrade your stopping power.

Brand:
REVO - Corporate Logo
ES#:
4499828
Mfg#:
RA841B200600
Back Ordered
$3339.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Supersprint Cat-Back Exhaust System - Non-Resonated

ES#4017775 - 777512KT - Supersprint Cat-Back Exhaust System - Non-Resonated - Stainless steel non-resonated cat-back exhaust system with quad round, polished tips - Includes secondary cat delete downpipes - Supersprint - Audi

Stainless steel non-resonated cat-back exhaust system with quad round, polished tips - Includes secondary cat delete downpipes

Brand:
Supersprint - Corporate Logo
ES#:
4017775
Mfg#:
777512KT
Back Ordered
$7659.99 USD
Free Shipping

Supertech Stainless Steel Valve Kit

ES#4315245 - st-aivn-1106s2KT - Supertech Stainless Steel Valve Kit - +1mm oversized valve head diameter, single groove keeper setup for high RPM use - Supertech - Audi

+1mm oversized valve head diameter, single groove keeper setup for high RPM use *Oversized valves require extra machine work to the cylinder head.*

Brand:
Supertech - Corporate Logo
ES#:
4315245
Mfg#:
ST-AIVN-1106S2KT
Back Ordered
$1202.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Revo Big Brake Kit - Blue - (355x32)

The Revo Big Brake Kit comes complete with everything required to upgrade your stopping power.

Brand:
REVO - Corporate Logo
ES#:
4499823
Mfg#:
RA841B200100
Back Ordered
$3339.00 USD
This product is lifetime replacement eligible Lifetime Replacement

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