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Audi S4 Performance Parts & Upgrades

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Active Valve Control System

ES#3426977 - SSXAU677 - Active Valve Control System - Gain complete control of the OE exhaust valves on factory and Milltek Sport exhaust systems - Milltek Sport - Audi

Gain complete control of the OE exhaust valves on factory and Milltek Sport exhaust systems

Brand:
Milltek Sport - Corporate Logo
ES#:
3426977
Mfg#:
SSXAU677
Ships on Nov 13, 2026
$809.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B8 A4/S4 Race Tow Strap - Black

ES#3569431 - 023419ECS01-06 - B8 A4/S4 Race Tow Strap - Black - Look great on the track or street! - ECS - Audi

Look great on the track or street! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3569431
Mfg#:
023419ECS01-06
In Stock
ON SALE! SAVE 53%
$106.99

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

$50.35 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silicone Diverter Valve Pressure Hose - Pair

ES#2864547 - 034-101-3066 - Silicone Diverter Valve Pressure Hose - Pair - This hose pair is designed to replace the outrageously expensive, failure-prone factory rubber hoses - 034Motorsport - Audi

This hose pair is designed to replace the outrageously expensive, failure-prone factory rubber hoses 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2864547
Mfg#:
034-101-3066
In Stock
$40.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Valvetrain Kit

ES#1905571 - SPRK-Audi27t - Performance Valvetrain Kit - Includes springs, retainers, and valve seats - Supertech - Audi

Includes springs, retainers, and valve seats

Brand:
Supertech - Corporate Logo
ES#:
1905571
Mfg#:
SPRK-AUDI27T
Ships in 8 Business Days
$799.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Maestro Tuning Suite - With Powertap Air Flash Tool

ES#3234533 - ED-MT-2.7TAPBKT - Maestro Tuning Suite - With Powertap Air Flash Tool - Ideal for shops and enthusiasts looking to recalibrate their vehicles for modified hardware - Eurodyne - Audi

Ideal for shops and enthusiasts looking to recalibrate their vehicles for modified hardware

Brand:
Eurodyne - Corporate Logo
ES#:
3234533
Mfg#:
ED-MT-2.7TAPBKT
In Stock
$799.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Kit - 10mm (1 Pair)

ES#3570111 - MS100156 - Wheel Spacer Kit - 10mm (1 Pair) - 10mm spacers to perfectly dial in your stance or clear your big brake kit! - APR - Audi Volkswagen

10mm spacers to perfectly dial in your stance or clear your big brake kit! Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
3570111
Mfg#:
MS100156
Ships in 5 Business Days
ON SALE! SAVE 10%
$126.99

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

$114.26 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Euro Street Series Coilovers - Adjustable Dampening

ES#4667062 - MR-CDK-AS497-EU - Euro Street Series Coilovers - Adjustable Dampening - Featuring adjustable damping. Average lowering of 0.5"-2.0"F, 0.5"-2.0"R. - Megan Racing - Audi

Featuring adjustable damping. Average lowering of 0.5"-2.0"F, 0.5"-2.0"R.

Brand:
Megan Racing - Corporate Logo
ES#:
4667062
Mfg#:
MR-CDK-AS497-EU
Special Order: No Guaranteed ETA
$799.00 USD
This product is lifetime replacement eligible Lifetime Replacement

RaceChip GTS Black With App Control

ES#4339360 - 917366 - RaceChip GTS Black With App Control - Get up to +66 hp and +52 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip - Race Chip - Audi

Get up to +66 hp and +52 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip

Brand:
Race Chip - Corporate Logo
ES#:
4339360
Mfg#:
917366
Ships on Nov 13, 2026
$799.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RaceChip GTS Black With App Control

ES#4339048 - 904526 - RaceChip GTS Black With App Control - Get up to +41 hp and +74 through a safe and easy to use app-controlled tuning module from RaceChip - Race Chip - Audi

Get up to +41 hp and +74 through a safe and easy to use app-controlled tuning module from RaceChip

Brand:
Race Chip - Corporate Logo
ES#:
4339048
Mfg#:
904526
Ships on Nov 13, 2026
$799.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Front & Rear Sway Bar Kit

ES#5290 - 22801 - Performance Front & Rear Sway Bar Kit - Includes the front & rear sways bars with installation hardware - Hotchkis - Audi

Includes the front & rear sways bars with installation hardware

Brand:
Hotchkis - Corporate Logo
ES#:
5290
Mfg#:
22801
Back Ordered
$798.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Stage 4 FX400 Clutch Kit

ES#2828972 - 02029HDC6 - Stage 4 FX400 Clutch Kit - Features the Power Plus I Pressure Plate with a 6-puck ceramic disc - 170% increased holding capacity - Clutch Masters - Audi

Features the Power Plus I Pressure Plate with a 6-puck ceramic disc - 170% increased holding capacity Recommended to be used with Clutch Masters steel (FW-029-SF) or aluminum (FW-029-AL) flywheels

Brand:
Clutch Masters - Corporate Logo
ES#:
2828972
Mfg#:
02029HDC6
Ships in 3 Business Days
$794.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

FX350 Clutch Kit - Stage 3+

ES#2828983 - 02031HDFF - FX350 Clutch Kit - Stage 3+ - Fiber Tough lined, rigid hub clutch disc with heavy duty pressure plate, Rated for 440ft/lbs. - Clutch Masters - Audi

Fiber Tough lined, rigid hub clutch disc with heavy duty pressure plate, Rated for 440ft/lbs.

Brand:
Clutch Masters - Corporate Logo
ES#:
2828983
Mfg#:
02031HDFF
Ships in 7 Business Days
$794.99 USD
Free Shipping

Stage 4 FX400 Clutch Kit

ES#2828973 - 02029HDCL - Stage 4 FX400 Clutch Kit - Featuring the Power Plus I pressure plate paired with a full-face ceramic disc - 170% increased holding capacity - Clutch Masters - Audi

Featuring the Power Plus I pressure plate paired with a full-face ceramic disc - 170% increased holding capacity Recommended to be used with Clutch Masters steel (FW-029-SF) or aluminum (FW-029-AL) flywheels

Brand:
Clutch Masters - Corporate Logo
ES#:
2828973
Mfg#:
02029HDCL
Ships in 7 Business Days
14% off MSRP

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

$922.99

This product was last offered at the strikethrough price on
10-24-2026

$794.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 3+ FX350 Clutch Kit

ES#2828974 - 02029HDFF - Stage 3+ FX350 Clutch Kit - Features the Power Plus I Pressure Plate with Clutch Masters New Formula Button disc - 110% increased holding capacity - Clutch Masters - Audi

Features the Power Plus I Pressure Plate with Clutch Masters New Formula Button disc - 110% increased holding capacity Recommended to be used with Clutch Masters steel (FW-029-SF) or aluminum (FW-029-AL) flywheels

Brand:
Clutch Masters - Corporate Logo
ES#:
2828974
Mfg#:
02029HDFF
Ships in 7 Business Days
$794.99 USD
Free Shipping

Stage 3 FX300 Clutch Kit

ES#2828975 - 02029HDTZ - Stage 3 FX300 Clutch Kit - Features the Power Plus I Pressure Plate with a Steel Back Segmented Kevlar disc - 110% increased holding capacity - Clutch Masters - Audi

Features the Power Plus I Pressure Plate with a Steel Back Segmented Kevlar disc - 110% increased holding capacity Recommended to be used with Clutch Masters steel (FW-029-SF) or aluminum (FW-029-AL) flywheels

Brand:
Clutch Masters - Corporate Logo
ES#:
2828975
Mfg#:
02029HDTZ
Ships in 9 Business Days
$794.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Open Carbon Fiber Intake System - With Throttle Body Pipe

ES#4049659 - ci100037KT - APR Open Carbon Fiber Intake System - With Throttle Body Pipe - 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#:
4049659
Mfg#:
CI100037KT
Back Ordered
ON SALE! SAVE 10%
$879.99

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

$791.91 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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