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Audi S4 Performance Engine & Drivetrain Parts

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ES#4351842 - ieppcgj2 - Integrated Engineering 3.0T "Dual Pulley" Power Kit - Turn your Audi B8 S4 or S5 into an all-out street monster with IE's complete Dual Pulley kit! Includes ECU software plus "Dual Pulley" setup - Integrated Engineering - Audi

Turn your Audi B8 S4 or S5 into an all-out street monster with IE's complete Dual Pulley kit! Includes ECU software plus "Dual Pulley" setup affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Fits vehicles with manual transmissions only

Brand:
Integrated Engineering - Corporate Logo
ES#:
4351842
Mfg#:
IEPPCGJ2
In Stock
$1799.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4751048 - 000703LA01EBKT - B5 A4 / S4 Quattro Adjustable Damping Coilovers & Performance Rear Differential Mount - Features 32 way adjustable damping, variable length and zinc-coated shock bodies - Enthusiast Bundles - Audi

Features 32 way adjustable damping, variable length and zinc-coated shock bodies Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751048
Mfg#:
000703LA01EBKT
In Stock
ON SALE! SAVE 30%
$1288.99

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

$899.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4389439 - IP-A121606 - IP High Performance Ignition Coil Set - Set Of Six - 4X more spark energy than stock coils! - Ignition Projects - Audi

4X more spark energy than stock coils! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Ignition Projects - Corporate Logo
ES#:
4389439
Mfg#:
IP-A121606
Ships in 3 Business Days
$895.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4491710 - IEBAVJ6KT - Integrated Engineering 3.0T 207mm Dual Pulley Power Kit - The one pulley solution for dual pulley power! - Integrated Engineering - Audi

The one pulley solution for dual pulley power! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Fits vehicles with manual transmissions only

Brand:
Integrated Engineering - Corporate Logo
ES#:
4491710
Mfg#:
IEBAVJ6KT
In Stock
$1776.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2864561 - 034-108-3001 - Silicone Y-Pipe Hose Pair - Big Bore - Allows a full 2.5" diameter transition to the lower RS4 inlet pipes - 034Motorsport - Audi

Allows a full 2.5" diameter transition to the lower RS4 inlet pipes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2864561
Mfg#:
034-108-3001
In Stock
$296.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2576035 - SA863FKT - Stage 3+ Clutch Kit - Lightweight Aluminum Flywheel (9lb) - Features a full faced, carbon semi-metallic disc with a torque rating of 689 ft/lbs - Spec Clutches - Audi

Features a full faced, carbon semi-metallic disc with a torque rating of 689 ft/lbs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Spec Clutches - Corporate Logo
ES#:
2576035
Mfg#:
SA863FKT
Ships in 8 Business Days
$1771.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4620269 - 8K0599381H - Rear Differential Mount Insert Kit - Black - Enhance your driving experience by filling the bushing void. - JH Motorsports  - Audi

Enhance your driving experience by filling the bushing void. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports  - Corporate Logo
ES#:
4620269
Mfg#:
8K0599381H
In Stock
$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4620258 - 8K0599257N - Rear Differential Carrier Mount Insert Kit - Black - Enhance your driving experience by filling the bushing void. - JH Motorsports  - Audi

Enhance your driving experience by filling the bushing void. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports  - Corporate Logo
ES#:
4620258
Mfg#:
8K0599257N
In Stock
$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3537134 - k70286hdoKT3 - Stage 2 Daily Clutch Kit - With Flywheel - Designed for the daily-driven, weekend track warrior. Conservatively rated at 350ft/lbs. - South Bend Clutch - Audi

Designed for the daily-driven, weekend track warrior. Conservatively rated at 350ft/lbs. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
South Bend Clutch - Corporate Logo
ES#:
3537134
Mfg#:
K70286HDOKT3
Ships in 1 Business Day
$1755.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4758920 - UH043-INA - Carbon Fiber Intake System With Inlet  - Redefining performance and airflow dynamics with unparalleled precision and style. - Unitronic - Audi

Redefining performance and airflow dynamics with unparalleled precision and style. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Tune is recommend for the best performance

Brand:
Unitronic - Corporate Logo
ES#:
4758920
Mfg#:
UH043-INA
Ships in 5 Business Days
$1745.99 USD
Free Shipping
on orders $49 and up
ES#2864562 - 034-108-3002 - Silicone Y-Pipe Hose Pair - Reinforced high-temp silicone for long life and abuse resistance - 034Motorsport - Audi

Reinforced high-temp silicone for long life and abuse resistance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2864562
Mfg#:
034-108-3002
In Stock
$158.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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 in 5 Business Days
ON SALE! SAVE 35%
$110.99

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

$72.14 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3604757 - 50-1000 - 340lph High Flow In-Tank Fuel Pump  - AEMs 340LPH High Flow In-Tank Fuel Pump is designed for high performance naturally aspirated and forced induction EFI vehicles. - AEM Electronics  - Audi Volkswagen

AEM’s 340LPH High Flow In-Tank Fuel Pump is designed for high performance naturally aspirated and forced induction EFI vehicles. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This is a general-use high flow fuel pump, not a direct plug-and-play swap in most applications

Brand:
AEM Electronics  - Corporate Logo
ES#:
3604757
Mfg#:
50-1000
In Stock at Vendor
$113.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4415724 - DL501TLWFW - JHM DSG Aluminum Lightweight Flywheel - 14lb. flywheel for DL501 DSG Transmissions - JH Motorsports  - Audi

14lb. flywheel for DL501 DSG Transmissions affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For DL501 DSG Transmissions only

Brand:
JH Motorsports  - Corporate Logo
ES#:
4415724
Mfg#:
DL501TLWFW
Ships in 10 Business Days
$1699.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4419866 - B8029A1 - Might-As-Well-Be-Gated Kit - This combo all but eliminates shifter slop and flex under load. - JXB Performance  - Audi

This combo all but eliminates shifter slop and flex under load. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JXB Performance  - Corporate Logo
ES#:
4419866
Mfg#:
B8029A1
In Stock at Vendor
$424.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Go from mild to wild! Select the options you want for your build. 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#:
4017055
Mfg#:
B8S4PWRPK
In Stock
ON SALE!
Starting at $0.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine & Drivetrain Parts

Worn mounts, bushings, and other drivetrain components rob performance. Replace or upgrade your drivetrain with our extensive catalog of mounts, bushings, clutch kits, and more.

Let us help you find the parts that fit your Audi

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