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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Most Popular Parts

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Billet Fuel Cap Cover - Black Anodized

ES#3677064 - 022506ECS0102 - Billet Fuel Cap Cover - Black 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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3677064
Mfg#:
022506ECS0102
In Stock
$120.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Brake Service Kit

ES#4846191 - 4M0615301AN8KT2 - Front Brake Service Kit - Featuring Zimmermann Cross-Drilled rotors and ECS DD23 "Daily Driver" ceramic pads - Includes set screws, brake wear sensors, and silicone brake lubricant. - Assembled By ECS - Audi

Featuring Zimmermann Cross-Drilled rotors and ECS DD23 "Daily Driver" ceramic pads - Includes set screws, brake wear sensors, and silicone brake lubricant. 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#:
4846191
Mfg#:
4M0615301AN8KT2
In Stock
ON SALE! SAVE 19%
$596.99

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

$483.49 USD
This product is lifetime replacement eligible Lifetime Replacement

Rear Cross Drilled UV Coated Brake Rotors - Pair (330x22)

ES#4491560 - 8k0615601cxKT - Rear Cross Drilled UV Coated Brake Rotors - Pair (330x22) - Features Brembo's special UV paint treatment that guarantees superior corrosion resistance. - Brembo - Audi

Features Brembo's special UV paint treatment that guarantees superior corrosion resistance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Brembo - Corporate Logo
ES#:
4491560
Mfg#:
8K0615601CXKT
In Stock
$422.99

This product was last offered at the strikethrough price on
01-21-2026

$289.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B8 Performance Plus Rear Shock - Priced Each

ES#4044760 - 24-262323 - B8 Performance Plus Rear Shock - Priced Each - Compliments factory sport package or lowering springs with a remarkably comfortable sport ride. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - Audi

Compliments factory sport package or lowering springs with a remarkably comfortable sport ride. World-famous Bilstein quality with a limited lifetime warranty! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

For vehicles without electronic suspension

Brand:
Bilstein - Corporate Logo
ES#:
4044760
Mfg#:
24-262323
In Stock
33% off MSRP

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

$222.00

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

$149.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RS+ Injector Upgrade Kit - EA839 3.0T/2.9T

ES#5374600 - 034-106-3044 - RS+ Injector Upgrade Kit - EA839 3.0T/2.9T - Safely provides a 67% increase in flow over EA839 3.0T and 31% increase over EA839 2.9T/EA825 4.0T RS Injectors! - 034Motorsport - Audi

Safely provides a 67% increase in flow over EA839 3.0T and 31% increase over EA839 2.9T/EA825 4.0T RS Injectors! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Must Run a 034Motorsport Stage 3 File Specifically for These Injectors

Brand:
034Motorsport - Corporate Logo
ES#:
5374600
Mfg#:
034-106-3044
Ships in 2 Business Days
ON SALE! SAVE 10%
$2400.00

This product was last offered at the strikethrough price on
06-28-2026

$2160.00 USD
Free Shipping

ECS Wheel Spacers - 20mm (Pair)

ES#2167462 - 002411ECS03A20KT - ECS Wheel Spacers - 20mm (Pair) - Add some style with these wheel spacers - ECS - Audi BMW Porsche

Add some style with these wheel spacers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2167462
Mfg#:
002411ECS03A20KT
In Stock
ON SALE! SAVE 10%
$140.99

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

$126.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B6 Performance DampTronic Front Strut - Priced Each

ES#4390655 - 26-296036 - B6 Performance DampTronic Front Strut - Priced Each - Unbelievable control, precise handling, ultimate performance and incredible comfort. German-made with world-famous Bilstein quality and a limited lifetime warranty! A heavy duty upgrade for the performance minded driver. - Bilstein - Audi

Unbelievable control, precise handling, ultimate performance and incredible comfort. German-made with world-famous Bilstein quality and a limited lifetime warranty! A heavy duty upgrade for the performance minded driver. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with factory electronic dampening control
For vehicles with electronic suspension (49mm diameter strut)

Brand:
Bilstein - Corporate Logo
ES#:
4390655
Mfg#:
26-296036
Ships on Aug 25, 2026
Auto Notify
33% off MSRP

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

$713.00

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

$479.00 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2167469
Mfg#:
002411ECS01A05KT
In Stock
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

19" Tekniform Style 013 - Set Of Four

ES#4338092 - 013-2KT - 19" Tekniform Style 013 - Set Of Four - 19"x8.5" ET40 5x112 - Matte Gunmetal - Tekniform - Audi BMW MINI

19"x8.5" ET40 5x112 - Matte Gunmetal affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Tekniform - Corporate Logo
ES#:
4338092
Mfg#:
013-2KT
In Stock
ON SALE! SAVE 20%
$1323.99

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

$1058.82 USD
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body

ES#4494226 - 06M133062L - Throttle Body - Complete throttle body unit - Genuine Volkswagen Audi - Audi

Complete throttle body unit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4494226
Mfg#:
06M133062L
Ships in 2 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.

$658.99

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

$602.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Pressure Fuel Pump

ES#4743213 - 06M127026H - High Pressure Fuel Pump - Fuel pump located on top of the engine - Hitachi - Audi

Fuel pump located on top of the engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hitachi - Corporate Logo
ES#:
4743213
Mfg#:
06M127026H
Back Ordered
$468.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front V5 Plain Brake Rotors - Set (350x34)

ES#4668330 - 4M0615301AN-P - Front V5 Plain Brake Rotors - Set (350x34) - Precision manufactured and featuring a GeoSpec corrosion-resistant coating - ECS - Audi

Precision manufactured and featuring a GeoSpec® corrosion-resistant coating affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4668330
Mfg#:
4M0615301AN-P
In Stock
ON SALE!
$237.99

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

$230.84 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Exhaust Resonator Delete Section

ES#4848336 - 008553ECS12-01 - ECS Tuning Exhaust Resonator Delete Section - Change out your ECS Tuning B8/8.5 S4/S5 or B9 A4/S4 Valved Exhaust from resonated to non-resonated! - ECS - Audi

Change out your ECS Tuning B8/8.5 S4/S5 or B9 A4/S4 Valved Exhaust from resonated to non-resonated! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4848336
Mfg#:
008553ECS12-01
In Stock
ON SALE! SAVE 10%
$91.99

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

$82.79 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#3560839 - S17D27R13ZNNI - Ball Seat Wheel Bolt - 14x1.5x27mm - Priced Each - Black zinc coated wheel bolts made specifically for OE wheels - ECS - Audi Volkswagen

Black 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#:
3560839
Mfg#:
S17D27R13ZNNI
In Stock
ON SALE! SAVE 32%
$4.99

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

$3.37 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 S4 Pre-facelift Rear Diffuser & Trunk Spoiler

ES#4751275 - 028801ECS01EBKT - Audi B9 S4 Pre-facelift Rear Diffuser & Trunk Spoiler - Add some aggressive styling to your Audi! - Enthusiast Bundles - Audi

Add some aggressive styling to your Audi! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits pre-facelift models (up to 2019) without integrated tips in the rear valance

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751275
Mfg#:
028801ECS01EBKT
In Stock
ON SALE! SAVE 34%
$696.26

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

$458.51 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt/Serpentine Belt Kit W/ Tensioners

ES#4699489 - 06m260849lKT - Accessory Belt/Serpentine Belt Kit W/ Tensioners - Keep your car from breaking down by replacing your cracked drive belt - Genuine Volkswagen Audi - Audi

Keep your car from breaking down by replacing your cracked drive belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4699489
Mfg#:
06M260849LKT
Ships in 2 Business Days
$825.99

This product was last offered at the strikethrough price on
02-26-2026

$824.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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

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