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Audi S4 Performance Parts & Upgrades

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Rear Exact-Fit Stainless Steel Brake Lines

ES#3449971 - 024686ECS02 - Rear Exact-Fit Stainless Steel Brake Lines - Rear set of DOT-compliant lines for an improved pedal feel - ECS - Audi Volkswagen

Rear set of DOT-compliant lines for an improved pedal feel affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3449971
Mfg#:
024686ECS02
Ships in 1 Business Day
ON SALE!
$95.99

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

$93.11 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front & Rear Exact-Fit Stainless Steel Brake Lines - Kit

ES#3491660 - 024921ecs01KT - Front & Rear Exact-Fit Stainless Steel Brake Lines - Kit - Complete set of DOT-compliant lines for an improved pedal feel - ECS - Audi

Complete set of DOT-compliant lines for an improved pedal feel affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3491660
Mfg#:
024921ECS01KT
In Stock
$235.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Clutch Kit

ES#1327 - RS4CLUTCHKIT - Clutch Kit - Revive the response & feel of your transmission with an RS4 clutch - Assembled By ECS - Audi Volkswagen

Revive the response & feel of your transmission with an RS4 clutch affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
1327
Mfg#:
RS4CLUTCHKIT
In Stock
ON SALE!
$567.99

This product was last offered at the strikethrough price on
05-20-2026

$527.12 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Driveshaft Center Support Bearing Carrier

Holds the driveshaft where it should be affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with 6HP19 transmissions (6 speed automatic)

Brand:
JXB Performance - Corporate Logo
ES#:
4305094
Mfg#:
B6004A0
In Stock at Vendor
Starting at $299.99 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Dynamic+ Braking Package

ES#4879776 - 034-301-0006-DSO - Dynamic+ Braking Package - The new standard for braking performance upgrades on your B8/B8.5 Audi S4/S5. - 034Motorsport - Audi

The new standard for braking performance upgrades on your B8/B8.5 Audi S4/S5. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4879776
Mfg#:
034-301-0006-DSO
Ships in 2 Business Days
$2094.00 USD
Free Shipping

V1 Series Coilover System

ES#3020359 - 10210065 - V1 Series Coilover System - The best balance between sporty driving and comfort - KW Suspension - Audi

The best balance between sporty driving and comfort affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits cabriolet and avant models only.
For avant and convertible models only. Range of lowering is 0.4-1.5" in the front and rear.

Brand:
KW Suspension - Corporate Logo
ES#:
3020359
Mfg#:
10210065
Ships in 4 Business Days
$2094.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Carbon Intake System - Stock Turbo Inlet

ES#4669283 - UH030-48-INA - Unitronic Carbon Intake System - Stock Turbo Inlet - improved throttle response, seamless integration and perfect fitment while greatly enhancing turbo induction sounds. - Unitronic - Audi

improved throttle response, seamless integration and perfect fitment while greatly enhancing turbo induction sounds. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Unitronic - Corporate Logo
ES#:
4669283
Mfg#:
UH030-48-INA
Ships in 5 Business Days
$2085.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 3 Endurance Clutch Kit

ES#3106524 - k70398fsstzKT - Stage 3 Endurance Clutch Kit - Designed for dedicated track cars. Conservatively rated at 480ft/lbs. - South Bend Clutch - Audi

Designed for dedicated track cars. Conservatively rated at 480ft/lbs. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Includes single mass flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3106524
Mfg#:
K70398FSSTZKT
Ships in 1 Business Day
$2083.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Carrier Mount Bushing Insert Kit

ES#3132752 - 018327ECS01 - Rear Differential Carrier Mount Bushing Insert Kit - Decrease differential slop for better drivetrain response! - ECS - Audi

Decrease differential slop for better drivetrain response! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3132752
Mfg#:
018327ECS01
Ships on Oct 13, 2026
Auto Notify
ON SALE! SAVE 25%
$113.99

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

$85.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ARMYTRIX Sport Cat-Pipe - Ceramic Coated

ES#4164586 - AU94S-CDC - ARMYTRIX Sport Cat-Pipe - Ceramic Coated - Ceramic Coated Sport Cat-Pipe with 200 CPSI Catalytic Converter - Increase power, reduce weight, and improve sound! - Armytrix - Audi

Ceramic Coated Sport Cat-Pipe with 200 CPSI Catalytic Converter - Increase power, reduce weight, and improve sound! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Armytrix - Corporate Logo
ES#:
4164586
Mfg#:
AU94S-CDC
Ships on Jul 10, 2026
$2050.00 USD
Free Shipping

750CC EV14 Bosch Fuel Injector - Priced Each

ES#4013557 - 034-106-3031 - 750CC EV14 Bosch Fuel Injector - Priced Each - The most advanced injector we offer. - Bosch - Audi

The most advanced injector we offer. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
4013557
Mfg#:
034-106-3031
Ships in 2 Business Days
$127.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Adjustable Short Throw Shifter With Rally Lever - Audi B8 A4/A5/S5/S5

ES#4609907 - 043644LA01-2 - ECS Adjustable Short Throw Shifter With Rally Lever - Audi B8 A4/A5/S5/S5 - Reduce throw and height while gaining more precise shifts with ECS Tuning's Adjustable Short Throw Shifter. - ECS - Audi

Reduce throw and height while gaining more precise shifts with ECS Tuning's Adjustable Short Throw Shifter. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4609907
Mfg#:
043644LA01-2
In Stock
ON SALE!
Starting at $511.01 USD
Customize
Free Shipping
This product is lifetime replacement eligible Partial Replacement

19" Wheel Spacer Flush Fit Kit - Black Bolts

ES#4476369 - B9FLUSH1KT - 19" Wheel Spacer Flush Fit Kit - Black Bolts - Includes H&R spacers & Black bolts to obtain a flush look on your OE 19" wheels - Assembled By ECS - Audi

Includes H&R spacers & Black bolts to obtain a flush look on your OE 19" wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4476369
Mfg#:
B9FLUSH1KT
Ships in 3 Business Days
ON SALE!
$299.99

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

$290.81 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Motorsport StreetSport Engine Mounts - Pair

ES#4846368 - 034-509-0089 - Motorsport StreetSport Engine Mounts - Pair - Designed with extreme performance in mind and manufactured from billet aluminum and high-durometer Density Line rubber for better ride characteristics than polyurethane. - 034Motorsport - Audi

Designed with extreme performance in mind and manufactured from billet aluminum and high-durometer Density Line rubber for better ride characteristics than polyurethane. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4846368
Mfg#:
034-509-0089
Ships in 2 Business Days
$677.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front & Rear Stainless Steel Braided Brake Line Kit

ES#4446061 - 034-303-0014 - Front & Rear Stainless Steel Braided Brake Line Kit - Replace your stock rubber brake hoses with these performance-minded stainless steel braided lines - 034Motorsport - Audi

Replace your stock rubber brake hoses with these performance-minded stainless steel braided lines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4446061
Mfg#:
034-303-0014
In Stock
$169.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Forged Narrow Superlite 6R Front Brake Kit - 12.88"

ES#3701616 - 140-14487-D - Forged Narrow Superlite 6R Front Brake Kit - 12.88" - Featuring black 6R six piston caliper and 12.88" GT drilled & slotted rotors - Delivers the ultimate combination for braking power and style! - Wilwood - Audi

Featuring black 6R six piston caliper and 12.88" GT drilled & slotted rotors - Delivers the ultimate combination for braking power and style! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wilwood - Corporate Logo
ES#:
3701616
Mfg#:
140-14487-D
Ships in 10 Business Days
$2015.99 USD

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