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Audi S4 Performance Parts & Upgrades

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Rear Trailing Arm Bushings - Rear Position

ES#4315386 - PFR3-712 - Rear Trailing Arm Bushings - Rear Position - Stiffen up your vehicles suspension - Powerflex - Audi

Stiffen up your vehicles suspension

Brand:
Powerflex - Corporate Logo
ES#:
4315386
Mfg#:
PFR3-712
Ships in 1 Business Day
$128.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Kit - 20mm (1 Pair)

ES#3672009 - MS100189 - Wheel Spacer Kit - 20mm (1 Pair) - 20mm spacers to perfectly dial in your stance or clear your big brake kit! - APR - Audi Volkswagen

20mm 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#:
3672009
Mfg#:
MS100189
Ships in 5 Business Days
ON SALE! SAVE 10%
$142.99

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

$128.66 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Kit - 20mm (1 Pair)

ES#3672011 - MS100191 - Wheel Spacer Kit - 20mm (1 Pair) - 20mm spacers to perfectly dial in your stance or clear your big brake kit! - APR - Audi

20mm 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#:
3672011
Mfg#:
MS100191
Ships in 5 Business Days
ON SALE! SAVE 10%
$142.99

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

$128.66 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rennline Heel/Toe Throttle Extension - Black

ES#2840459 - PE75HBLACK - Rennline Heel/Toe Throttle Extension - Black - Pedal extensions to customize your driving experience - Rennline - Audi Volkswagen

Pedal extensions to customize your driving experience

Brand:
Rennline - Corporate Logo
ES#:
2840459
Mfg#:
PE75HBLACK
Ships in 4 Business Days
ON SALE! SAVE 20%
$53.00

This product was last offered at the strikethrough price on
10-07-2026

$42.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rennline 3-Piece Pedal Set - Manual Transmission - Black

Black anodized aircraft aluminum gas, brake, and clutch pedal set with rubber grips and stainless steel hardware

Brand:
Rennline - Corporate Logo
ES#:
2840404
Mfg#:
P7460BLACK
Ships in 6 Business Days
ON SALE! SAVE 11%
$140.00

This product was last offered at the strikethrough price on
10-07-2026

$125.00 USD
Free Shipping
on orders $49 and up

Front & Rear Stainless Steel Brake Line Kit

High-Quality, DOT approved stainless brake lines to replace the factory hoses on your S4/S5

Brand:
JH Motorsports - Corporate Logo
ES#:
4046124
Mfg#:
JHM-SBLK1325
Ships in 10 Business Days
$124.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front & Rear Stainless Steel Brake Line Kit

ES#4046123 - JHM-SBLK1320 - Front & Rear Stainless Steel Brake Line Kit - High-Quality, DOT approved stainless brake lines to replace the factory hoses on your S4 - JH Motorsports - Audi

High-Quality, DOT approved stainless brake lines to replace the factory hoses on your S4

Brand:
JH Motorsports - Corporate Logo
ES#:
4046123
Mfg#:
JHM-SBLK1320
Ships in 10 Business Days
$123.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Motorsport-Spec Solid Transmission Mount - Priced Each

ES#3432217 - 034-509-4000 - Motorsport-Spec Solid Transmission Mount - Priced Each - Solid aluminum base, CNC machined delrin mount, and installation hardware - Fits left and right sides - 034Motorsport - Audi

Solid aluminum base, CNC machined delrin mount, and installation hardware - Fits left and right sides 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3432217
Mfg#:
034-509-4000
Ships in 2 Business Days
$121.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Software Update

Upgrade existing stage 1 and stage 2 software to V2 & V3 Call In Or Chat For Best Price!
This upgrade must be performed at ECS Tuning's facility in Ohio.
For existing Stage 1 or Stage 2 customers with an ECU upgrade installed before 5/14/2015. Vehicle must be brought to ECS Tuning for programming.

Brand:
APR - Corporate Logo
ES#:
2918505
Mfg#:
30TFSIUPDATEKT
In Stock
ON SALE! SAVE 20%
$150.00

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

$120.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Silicone Inlet Hose

ES#2966730 - 034-112-6013 - Silicone Inlet Hose - Upgraded silicone hose from the MAF sensor to the throttle body - 034Motorsport - Audi

Upgraded silicone hose from the MAF sensor to the throttle body 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2966730
Mfg#:
034-112-6013
Ships in 2 Business Days
$120.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Kit - 2mm (1 Pair)

ES#3570114 - MS100159 - Wheel Spacer Kit - 2mm (1 Pair) - 2mm spacers to perfectly dial in your stance or clear your big brake kit! - APR - Audi

2mm 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#:
3570114
Mfg#:
MS100159
Ships in 3 Business Days
ON SALE! SAVE 11%
$66.99

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

$59.90 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Kit - 17mm (1 Pair)

ES#3672010 - MS100190 - Wheel Spacer Kit - 17mm (1 Pair) - 17mm spacers to perfectly dial in your stance or clear your big brake kit! - APR - Audi

17mm 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#:
3672010
Mfg#:
MS100190
Ships in 5 Business Days
ON SALE! SAVE 10%
$132.99

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

$119.65 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JB4 Billet Aluminum Enclosure

ES#3672109 - JB4-BLT-ENCR - JB4 Billet Aluminum Enclosure - Stylish protective waterproof case for your JB1 or JB4 - Burger Motorsports - Audi Volkswagen Mercedes Benz MINI Porsche

Stylish protective waterproof case for your JB1 or JB4

Brand:
Burger Motorsports - Corporate Logo
ES#:
3672109
Mfg#:
JB4-BLT-ENCR
Ships in 1 Business Day
$59.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Snub Mount With Bracket

ES#3575755 - 034-509-2003 - Performance Snub Mount With Bracket - Greatly reduces engine movement under throttle transition w/o increasing noise and harshness - 034Motorsport - Audi

Greatly reduces engine movement under throttle transition w/o increasing noise and harshness 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3575755
Mfg#:
034-509-2003
Ships in 2 Business Days
$117.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Lower Control Arm Bushing Set - Inner

ES#3045167 - SPF3128K - Front Lower Control Arm Bushing Set - Inner - Upgrade to a more engaging driving experience - SuperPro - Audi Volkswagen

Upgrade to a more engaging driving experience For the straight control arm

Brand:
SuperPro - Corporate Logo
ES#:
3045167
Mfg#:
SPF3128K
Ships in 1 Business Day
$114.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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