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Audi S4 Most Popular Parts

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ES#451244 - 8K0807521D1RR - S-Line Rear Diffuser - Platinum Grey - Featuring dual exit / single tip exhaust provisions - Genuine Volkswagen Audi - Audi

Featuring dual exit / single tip exhaust provisions

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
451244
Mfg#:
8K0807521D1RR
Ships in 1-2 days
13% off MSRP

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

$260.00

This product was last offered at the strikethrough price on
08-31-2026

$225.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2556784 - 8K0798151B - Shift Lever With Shift Base - Complete shift lever and base assembly - Genuine Volkswagen Audi - Audi

Complete shift lever and base assembly Up to production date 9/13/2010

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2556784
Mfg#:
8K0798151B
Ships in 6 Business Days
13% off MSRP

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

$520.00

This product was last offered at the strikethrough price on
08-31-2026

$450.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#468927 - N10731501 - Hex Bolt - Priced Each - Install new hardware with your new parts. M12x1.5x118x90 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M12x1.5x118x90 Secures the curved lower control arm to the subframe

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
468927
Mfg#:
N10731501
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.

$13.60

This product was last offered at the strikethrough price on
11-06-2026

$13.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5526925 - TGK-0309-02 - TGK Motorsport High Pressure Fuel Pump Piston Upgrade Kit - Elevate your Audi's performance, designed to push the boundaries of your vehicle's fuel system capabilities. - TGK Motorsport - Audi

Elevate your Audi's performance, designed to push the boundaries of your vehicle's fuel system capabilities.

Brand:
TGK Motorsport - Corporate Logo
ES#:
5526925
Mfg#:
TGK-0309-02
Ships in 5 Business Days
$449.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5477699 - TGK-0411-04 - TGK Motorsport Audi Thrust Arm Spherical Monoball Kit  - A direct-replacement spherical monoball kit for B9 Audi thrust arms that replaces the factory rubber bushings to eliminate unwanted suspension deflection. - TGK Motorsport - Audi

A direct-replacement spherical monoball kit for B9 Audi thrust arms that replaces the factory rubber bushings to eliminate unwanted suspension deflection.

Brand:
TGK Motorsport - Corporate Logo
ES#:
5477699
Mfg#:
TGK-0411-04
Ships in 5 Business Days
$449.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3021937 - EBFIB56ES1 - BFI Stage 1 Engine Mount - Priced Each - Keep your engine planted and transfer as much power to the ground as possible - Black Forest Industries - Audi Volkswagen

Keep your engine planted and transfer as much power to the ground as possible

Brand:
Black Forest Industries - Corporate Logo
ES#:
3021937
Mfg#:
EBFIB56ES1
Ships on Dec 1, 2026
$224.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5435760 - 40595666 - DRA Series Trak Spacers - 20mm (1 Pair) - Get that stance that you've been craving with these new spacers - H&R - Audi BMW Porsche

Get that stance that you've been craving with these new spacers

Brand:
H&R - Corporate Logo
ES#:
5435760
Mfg#:
40595666
Ships in 3 Business Days
10% off MSRP

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

$249.99

This product was last offered at the strikethrough price on
07-01-2026

$224.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5435531 - HW-559 - CTS Turbo Rear Subframe Insert Set  - Lock down the rear end of your B8 S4, S5, Q5, or SQ5 and eliminate subframe deflection with CTS Turbos billet aluminum insert set, delivering sharper handling and direct power transfer with minimal NVH. - CTS - Audi

Lock down the rear end of your B8 S4, S5, Q5, or SQ5 and eliminate subframe deflection with CTS Turbo’s billet aluminum insert set, delivering sharper handling and direct power transfer with minimal NVH.

Brand:
CTS - Corporate Logo
ES#:
5435531
Mfg#:
HW-559
Ships in 7 Business Days
$149.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3219896 - 4G0423812A - Outer Tie Rod End - Right - Keep your suspension steady and your steering tight! - Lemforder - Audi Porsche

Keep your suspension steady and your steering tight! We Price Match - Give Us A Call or Chat!
From the 2013 model year

Brand:
Lemforder - Corporate Logo
ES#:
3219896
Mfg#:
4G0423812A
In Stock at Vendor
$97.99

This product was last offered at the strikethrough price on
07-18-2026

$89.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4039245 - 020809ECS01-01 -  Billet Brake Fluid Cap - Black Anodized  - Lose the plastic! - ECS - Audi Volkswagen

Lose the plastic! 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
4039245
Mfg#:
020809ECS01-01
Ships on Mar 19, 2027
$89.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2724103 - RS4KO4INSTKt - K04/K03 Turbocharger Installation Kit - Includes all hardware & gaskets to install turbos - plus turbo mounting bolts - Assembled By ECS - Audi

Includes all hardware & gaskets to install turbos - plus turbo mounting bolts 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
2724103
Mfg#:
RS4KO4INSTKT
In Stock
ON SALE! SAVE 60%
$187.59

This product was last offered at the strikethrough price on
07-17-2026

$74.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#451257 - 8K0807899 - Front Bumper Vertical Slats - Helps support the front lip spoiler to the vehicle - Genuine Volkswagen Audi - Audi

Helps support the front lip spoiler to the vehicle Up to the 2012 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
451257
Mfg#:
8K0807899
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.

$55.99

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

$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4056901 - 06e121545KT - Compressor Flange Water Hose Kit - Left - Connects the supercharger flange to the hard water line. Upper & lower spring clamps included. - Genuine Volkswagen Audi - Audi

Connects the supercharger flange to the hard water line. Upper & lower spring clamps included.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4056901
Mfg#:
06E121545KT
In Stock
$30.99

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

$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3537033 - 06E905377A - Green Knock Sensor With Harness - 465mm - Detects engine ping for timing adjustment, 465mm length with green connector - Hamburg Tech - Audi Volkswagen

Detects engine ping for timing adjustment, 465mm length with green connector We Price Match - Give Us A Call or Chat!
For cylinders 1-3

Brand:
Hamburg Tech - Corporate Logo
ES#:
3537033
Mfg#:
06E905377A
In Stock
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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