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Audi S4 Most Popular Parts

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20" APEX VS-5RS Forged Wheels - Square Set Of Four

ES#5435424 - VS5RS201020MGDKT - 20" APEX VS-5RS Forged Wheels - Square Set Of Four - 20x10 ET20 5X112 66.6CB - Motorsport Gold - APEX Wheels - Audi

20x10 ET20 5X112 66.6CB - Motorsport Gold 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
APEX Wheels - Corporate Logo
ES#:
5435424
Mfg#:
VS5RS201020MGDKT
Ships in 5 Business Days
$4036.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacers - 5mm (Pair)

ES#2167469 - 002411ECS01A05Kt - ECS Wheel Spacers - 5mm (Pair) - Get the right size wheel spacer for your vehicle - ECS - Audi BMW Porsche

Get the right size wheel spacer for your vehicle 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
ECS - Corporate Logo
ES#:
2167469
Mfg#:
002411ECS01A05KT
Ships on Dec 7, 2026
ON SALE! SAVE 25%
$137.99

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

$103.48 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Upper Spring Plate - Priced Each

ES#437263 - 8E0512149P - Rear Upper Spring Plate - Priced Each - Fits left and right side - Genuine Volkswagen Audi - Audi

Fits left and right side Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
437263
Mfg#:
8E0512149P
In Stock
24% off MSRP

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

$45.58

This product was last offered at the strikethrough price on
10-26-2026

$34.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Inlet Kit - Silicone - Audi B8 S4/S5 3.0T

ES#3170829 - 007344ECS01KT2 - Supercharger Inlet Kit - Silicone - Audi B8 S4/S5 3.0T - Wire reinforced silicone smooths the intake tract & hinders collapsing. The ultimate in durability! - ECS - Audi
ECS Tuning recommends this product.

Wire reinforced silicone smooths the intake tract & hinders collapsing. The ultimate in durability! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
ECS - Corporate Logo
ES#:
3170829
Mfg#:
007344ECS01KT2
In Stock
ON SALE! SAVE 25%
$167.99

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

$125.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Belt Idler Pulley

ES#2084806 - 06E903341H - Supercharger Belt Idler Pulley - Tracks the supercharger belt properly - Genuine Volkswagen Audi - Audi

Tracks the supercharger belt properly Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2084806
Mfg#:
06E903341H
In Stock
32% off MSRP

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

$139.99

This product was last offered at the strikethrough price on
06-07-2026

$95.44 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Wheel Spacer Pair - 10mm

ES#3618560 - 034-604-7001 - 034Motorsport Wheel Spacer Pair - 10mm - Designed to fit most Audi & Volkswagen vehicles with a 57.1mm center bore and 5x112mm wheel bolt patterns - 034Motorsport - Audi Volkswagen

Designed to fit most Audi & Volkswagen vehicles with a 57.1mm center bore and 5x112mm wheel bolt patterns 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
034Motorsport - Corporate Logo
ES#:
3618560
Mfg#:
034-604-7001
In Stock
$89.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Fuel Cap Cover - Clear Anodized

ES#3677062 - 022506ECS0101 - Billet Fuel Cap Cover - Clear Anodized - Upgrade your gas cap to our gorgeous CNC-machined aluminum cover. Easily installs over your existing cap! - ECS - Audi Volkswagen Porsche

Upgrade your gas cap to our gorgeous CNC-machined aluminum cover. Easily installs over your existing cap! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
ECS - Corporate Logo
ES#:
3677062
Mfg#:
022506ECS0101
In Stock
$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Zerex Coolant / Antifreeze - Pink G40 (Concentrate) 1 Gallon

ES#4884761 - 0009897110090109 - Zerex Coolant / Antifreeze - Pink G40 (Concentrate) 1 Gallon - MBZ Approval: 325.5 / 325.6 - Genuine Mercedes Benz - Audi Volkswagen Mercedes Benz Porsche

MBZ Approval: 325.5 / 325.6 Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
4884761
Mfg#:
0009897110090109
In Stock
2% off MSRP

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

$32.04

This product was last offered at the strikethrough price on
10-26-2026

$31.50 USD
Free Shipping
on orders $49 and up

JHM Trio Package - Solid Shifter, Linkage and Bushing for 2001.5-2002 (Late Style)

ES#4046098 - PKG-B5S4L - JHM Trio Package - Solid Shifter, Linkage and Bushing for 2001.5-2002 (Late Style) - Includes JHM "Solid" Short Throw Shifter, Delrin Shifter Stabilizer Bushing and the "Solid" Linkage Upgrade - JH Motorsports - Audi

Includes JHM "Solid" Short Throw Shifter, Delrin Shifter Stabilizer Bushing and the "Solid" Linkage Upgrade Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
JH Motorsports - Corporate Logo
ES#:
4046098
Mfg#:
PKG-B5S4L
Ships in 3 Business Days
$499.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

01E 6-speed Minimal Rebuild Kit W/ JHM Updated 1-2 Collar

ES#4045854 - 01E311239L-fix - 01E 6-speed Minimal Rebuild Kit W/ JHM Updated 1-2 Collar - Minimal 01E Rebuild Kit (1-2 Shift Problem) with JHM Performance Carbon Synchros and the JHM updated 1-2 Shift Collar - Fix it right the first time! - JH Motorsports - Audi

Minimal 01E Rebuild Kit (1-2 Shift Problem) with JHM Performance Carbon Synchros and the JHM updated 1-2 Shift Collar - Fix it right the first time! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
*Please see fitment notes in long description prior to ordering*

Brand:
JH Motorsports - Corporate Logo
ES#:
4045854
Mfg#:
01E311239L-FIX
Ships in 2 Business Days
$499.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 3 Clutch Kit

ES#2570128 - SA863 - Stage 3 Clutch Kit - Features a 6 puck, rigid hub disc with a torque rating of 620 ft/lbs - Spec Clutches - Audi

Features a 6 puck, rigid hub disc with a torque rating of 620 ft/lbs Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
To be used with a OEM Dual Mass Flywheel.

Brand:
Spec Clutches - Corporate Logo
ES#:
2570128
Mfg#:
SA863
Ships in 9 Business Days
$799.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust - Non Resonated

2.50" stainless steel with your choice of tip style Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Milltek Sport - Corporate Logo
ES#:
4164626
Mfg#:
B9NONRESONATED
Ships on Nov 16, 2026
ON SALE!
Starting at $3156.71 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Full Polyurethane Rear Control Arm Bushing Kit

ES#4701648 - POW-073-75 - Full Polyurethane Rear Control Arm Bushing Kit - Control movement and maintain wheel alignment - Verkline - Audi

Control movement and maintain wheel alignment Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Verkline - Corporate Logo
ES#:
4701648
Mfg#:
POW-073-75
Ships in 2 Business Days
$665.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Fender Liner Hardware Kit - Priced Each

ES#2503342 - 8K0098629 - Front Fender Liner Hardware Kit - Priced Each - One kit per fender liner - Genuine Volkswagen Audi - Audi

One kit per fender liner Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2503342
Mfg#:
8K0098629
In Stock
5% off MSRP

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

$58.99

This product was last offered at the strikethrough price on
10-26-2026

$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Res-X Resonator Delete

ES#3426667 - 034-105-7040 - 034Motorsport Res-X Resonator Delete - Unleashes a throaty growl and exotic tone that exudes the sound of performance - 034Motorsport - Audi

Unleashes a throaty growl and exotic tone that exudes the sound of performance 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
034Motorsport - Corporate Logo
ES#:
3426667
Mfg#:
034-105-7040
In Stock
$443.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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