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Audi S4 Performance Parts & Upgrades

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Unitronic Performance Software - Stage 1+

ES#4376314 - 30T-EA839-1+ - Unitronic Performance Software - Stage 1+ - Gain up to 100 horsepower and 112 lb-ft of torque on 93 Octane - Unitronic - Audi

Gain up to 100 horsepower and 112 lb-ft of torque on 93 Octane This tune requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next

Brand:
Unitronic - Corporate Logo
ES#:
4376314
Mfg#:
30T-EA839-1+
In Stock
$900.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Charge Pipe Kit

This includes 3 reinforced silicone hoses, and 1 aluminum charge air tube. For vehicles that have the Wagner Competition Intercooler

Brand:
Wagner Tuning - Corporate Logo
ES#:
4017656
Mfg#:
210001120
Ships in 1 Business Day
$450.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear BBK (Big Brake Kit), JHM 330mm

Finally a low cost 330mm Rear Big Brake Kit

Brand:
JH Motorsports - Corporate Logo
ES#:
4046031
Mfg#:
BBK-1023X330X22
Ships in 10 Business Days
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Driveshaft Center Support Bearing Carrier

Holds the driveshaft where it should be 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

5mm Wheel Spacers - Black (Pair)

ES#3476423 - 021460TMS02-04 - 5mm Wheel Spacers - Black (Pair) - Lightweight wheel spacers with a machined tab for easy removal - Turner Motorsport - Audi BMW MINI Porsche

Lightweight wheel spacers with a machined tab for easy removal 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
3476423
Mfg#:
021460TMS02-04
In Stock
ON SALE! SAVE 25%
$149.99

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

$112.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Build Your Own Power Package - Audi B9 S4 3.0T

ES#4017052 - B9S4PWRPK - Build Your Own Power Package - Audi B9 S4 3.0T - Go from mild to wild! Select the options you want for your build. - Assembled By ECS - Audi

Go from mild to wild! Select the options you want for your build. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4017052
Mfg#:
B9S4PWRPK
Back Ordered
ON SALE!
Starting at $0.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Pulley Upgrade Kit

ES#3082216 - CTS-HW-0133 - Supercharger Pulley Upgrade Kit - Software & installation kit not included in this upgrade kit - CTS - Audi Porsche

Software & installation kit not included in this upgrade kit *For models with press-on style supercharger pulleys - 3.0 TFSI Performance Software is sold separately a

Brand:
CTS - Corporate Logo
ES#:
3082216
Mfg#:
CTS-HW-0133
Ships in 5 Business Days
ON SALE! SAVE 20%
$159.99

This product was last offered at the strikethrough price on
09-29-2026

$127.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Magnetic Drain Plug - Priced Each

ES#3551002 - VWR180000 - Billet Magnetic Drain Plug - Priced Each - Capture harmful particles to prevent wear. M14x1.5 - Racingline - Audi Volkswagen MINI Porsche

Capture harmful particles to prevent wear. M14x1.5

Brand:
Racingline - Corporate Logo
ES#:
3551002
Mfg#:
VWR180000
Ships in 9 Business Days
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Brake Kit - Stage 1 - 2-Piece Cross Drilled & Slotted Rotors (345x30)

ES#2739012 - 8E0615301TKT5 - Front Brake Kit - Stage 1 - 2-Piece Cross Drilled & Slotted Rotors (345x30) - Upgrade your brake system with 2-piece rotors and stainless steel lines - ECS - Audi

Upgrade your brake system with 2-piece rotors and stainless steel lines 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2739012
Mfg#:
8E0615301TKT5
Back Ordered
ON SALE!
$899.99

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

$890.45 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Carbon Fiber Front Lip Spoiler

ES#3142810 - D28241 - Carbon Fiber Front Lip Spoiler - Delivers an unmatched combination of aggressiveness and luxury elegance - Deval - Audi

Delivers an unmatched combination of aggressiveness and luxury elegance Fits 2013+ (facelift) models only

Brand:
Deval - Corporate Logo
ES#:
3142810
Mfg#:
D28241
Special Order: No Guaranteed ETA
$890.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Front Lip Spoiler

ES#3142808 - D28231 - Carbon Fiber Front Lip Spoiler - Delivers an unmatched combination of aggressiveness and luxury elegance - Deval - Audi

Delivers an unmatched combination of aggressiveness and luxury elegance Fits 2009-2012 (pre-facelift) models only

Brand:
Deval - Corporate Logo
ES#:
3142808
Mfg#:
D28231
Special Order: No Guaranteed ETA
$890.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Stage 4 Clutch Kit - FX400

ES#2829013 - 02060HDCL - Stage 4 Clutch Kit - FX400 - Full faced, sprung hub ceramic clutch disc with a HP rating of 475 - Clutch Masters - Audi

Full faced, sprung hub ceramic clutch disc with a HP rating of 475

Brand:
Clutch Masters - Corporate Logo
ES#:
2829013
Mfg#:
02060HDCL
Ships in 7 Business Days
$889.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 3 Clutch Kit - FX350

ES#2829014 - 02060HDFF - Stage 3 Clutch Kit - FX350 - Full faced, sprung hub fiber friction lined clutch disc with a HP rating of 375 - Clutch Masters - Audi

Full faced, sprung hub fiber friction lined clutch disc with a HP rating of 375

Brand:
Clutch Masters - Corporate Logo
ES#:
2829014
Mfg#:
02060HDFF
Ships in 7 Business Days
$889.99 USD
Free Shipping
on orders $49 and up

Shocks & Struts - Koni Sports (Set Of Four)

ES#2219836 - 8040-1283SPORT - Shocks & Struts - Koni Sports (Set Of Four) - Add the legendary performance of Koni shocks and struts to your Audi - Koni - Audi

Add the legendary performance of Koni shocks and struts to your Audi

Brand:
Koni - Corporate Logo
ES#:
2219836
Mfg#:
8040-1283SPORT
In Stock at Vendor
$882.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Front Upper Strut Mount - Priced Each

ES#2952203 - 034-601-1000 - Density Line Front Upper Strut Mount - Priced Each - Approximately twice as stiff as stock, for increased firmness and vehicle control - 034Motorsport - Audi

Approximately twice as stiff as stock, for increased firmness and vehicle control 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2952203
Mfg#:
034-601-1000
In Stock
$44.00 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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