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Audi S4 Most Popular Parts

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Torx Bolt - Priced Each

ES#468268 - N10470705 - Torx Bolt - Priced Each - Install new hardware with your new parts. M6x50 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M6x50 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures cylinder heads to the engine block - 7 required

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
468268
Mfg#:
N10470705
In Stock
$4.99 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#1162 - B5QSSBLK - 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#:
1162
Mfg#:
B5QSSBLK
In Stock
ON SALE!
$212.99

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

$202.34 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Lightweight Flywheel Drag Clutch Kit - Stage 2

ES#3619835 - k70619-hd-bKT - Performance Lightweight Flywheel Drag Clutch Kit - Stage 2 - ECS Lightweight Flywheel with a Southbend Stage 2 clutch kit rated at 500ft/lbs - ECS - Audi

ECS Lightweight Flywheel with a Southbend Stage 2 clutch kit rated at 500ft/lbs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3619835
Mfg#:
K70619-HD-BKT
Back Ordered
Auto Notify
ON SALE! SAVE 10%
$3367.99

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

$3031.19 USD
This product is lifetime replacement eligible Lifetime Replacement

V2 Series Coilover Kit - With EDC Deactivation Kit

ES#2619624 - 15210097 - V2 Series Coilover Kit - With EDC Deactivation Kit - Variant 2 coilovers offer sport handling with adjustable rebound dampening - KW Suspension - Audi

Variant 2 coilovers offer sport handling with adjustable rebound dampening affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits sedan models with factory EDC. Range of lowering is 0.8-1.5" in the front and 0.4-1.5" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2619624
Mfg#:
15210097
Ships in 5 Business Days
$3024.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer - 12.5mm (Pair)

ES#2863228 - 002403ecs02a13KT - ECS Wheel Spacer - 12.5mm (Pair) - Exclusively built for your 57.1mm centerbore VW/Audi - ECS - Audi Volkswagen

Exclusively built for your 57.1mm centerbore VW/Audi affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2863228
Mfg#:
002403ECS02A13KT
In Stock
ON SALE! SAVE 25%
$143.99

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

$107.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Lug Bolts (Set Of 10) - 47mm

ES#3672015 - MS100186 - APR Lug Bolts (Set Of 10) - 47mm - Black zinc coated 47mm ball set wheel bolts to be used with 20mm wheel spacers - APR - Audi Volkswagen

Black zinc coated 47mm ball set wheel bolts to be used with 20mm wheel spacers Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
3672015
Mfg#:
MS100186
In Stock
11% off MSRP

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

$63.99

This product was last offered at the strikethrough price on
06-17-2026

$56.99 USD
Free Shipping
on orders $49 and up
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2503342
Mfg#:
8K0098629
In Stock
3% 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
06-17-2026

$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Coil Spring - Priced Each

ES#450815 - 8K0511115DE - Rear Coil Spring - Priced Each - Paint marks: 4 Grey - Genuine Volkswagen Audi - Audi

Paint marks: 4 Grey affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450815
Mfg#:
8K0511115DE
Ships in 3 Business Days
8% off MSRP

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

$330.00

This product was last offered at the strikethrough price on
06-17-2026

$301.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

H&R Sport Spring & Bilstein Sport Shocks - Cup Kit

ES#629 - 29477-1BSC - H&R Sport Spring & Bilstein Sport Shocks - Cup Kit - Perfect combination of handing & ride quality - Assembled By ECS - Audi

Perfect combination of handing & ride quality 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#:
629
Mfg#:
29477-1BSC
Ships in 4 Business Days
$1129.99

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

$1004.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stainless Steel Bi-Pipe Set - Wrinkle Black

ES#3183538 - 034-108-5001-BLK - Stainless Steel Bi-Pipe Set - Wrinkle Black - Replace your restrictive OEM Audi bipipes with 034Motorsport's High-Flow Bi-pipe Set for the 2.7T! - 034Motorsport - Audi

Replace your restrictive OEM Audi bipipes with 034Motorsport's High-Flow Bi-pipe Set for the 2.7T! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3183538
Mfg#:
034-108-5001-BLK
Ships in 3 Business Days
$301.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Upgraded Ignition Coil - Grey - Set of Six

ES#4376591 - MS100209-6KT - APR Upgraded Ignition Coil - Grey - Set of Six - Designed to be a direct plug-and-play upgrade to factory coils, providing greater energy output, ensuring a stronger and more consistent spark! - APR - Audi

Designed to be a direct plug-and-play upgrade to factory coils, providing greater energy output, ensuring a stronger and more consistent spark! Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

To be used with the 2.0T coil pack conversion kits.

Brand:
APR - Corporate Logo
ES#:
4376591
Mfg#:
MS100209-6KT
In Stock
$214.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe - Supply

ES#4812552 - 06E121045BD - Coolant Pipe - Supply - Main supply pipe that connects to the upper radiator hose and the engine - Rein - Audi

Main supply pipe that connects to the upper radiator hose and the engine 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!
Up to the 2012 model year

Brand:
Rein - Corporate Logo
ES#:
4812552
Mfg#:
06E121045BD
In Stock
$93.99 USD
Free Shipping
on orders $49 and up

Clutch Masters Stainless Steel Clutch Line Kit - Audi B8/B9 A4/S4/A5/S5/RS5

ES#4920909 - SL-02060 - Clutch Masters Stainless Steel Clutch Line Kit - Audi B8/B9 A4/S4/A5/S5/RS5 - Stainless clutch lines delivers better clutch responsiveness and feel! - Clutch Masters - Audi

Stainless clutch lines delivers better clutch responsiveness and feel! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Clutch Masters - Corporate Logo
ES#:
4920909
Mfg#:
SL-02060
In Stock
15% off MSRP

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

$74.99

This product was last offered at the strikethrough price on
06-17-2026

$63.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Upper Shock Mount - Priced Each

ES#2876579 - 8K0513353E - Rear Upper Shock Mount - Priced Each - Fits the left and right side - Febi - Audi Porsche

Fits the left and right side 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:
Febi - Corporate Logo
ES#:
2876579
Mfg#:
8K0513353E
In Stock
$43.99

This product was last offered at the strikethrough price on
05-07-2026

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Wheel Bolt - 14x1.5x27mm - Priced Each

ES#3560843 - LS17D27F - Ball Seat Wheel Bolt - 14x1.5x27mm - Priced Each - Zinc-coated wheel bolts made specifically for OE wheels - ECS - Audi Volkswagen

Zinc-coated wheel bolts made specifically for OE wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3560843
Mfg#:
LS17D27F
In Stock
ON SALE! SAVE 25%
$4.99

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

$3.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Trunk Spoiler - Audi B9 A4/S4

ES#3141741 - 019220ECS01A - Carbon Fiber Trunk Spoiler - Audi B9 A4/S4 - Add a touch of style and real carbon fiber to your Audi - ECS - Audi

Add a touch of style and real carbon fiber to your Audi affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Requires removal of the factory trunk spoiler

Brand:
ECS - Corporate Logo
ES#:
3141741
Mfg#:
019220ECS01A
In Stock
ON SALE! SAVE 28%
$694.99

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

$500.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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