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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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SONAX Clear View 1:100 Concentrate

ES#4491681 - 02711410 - SONAX Clear View 1:100 Concentrate - offers highly effective cleaning power with a fresh fragrance, perfect for swiftly removing road grime from windshields - SONAX - Audi BMW Volkswagen Mercedes Benz MINI Porsche

offers highly effective cleaning power with a fresh fragrance, perfect for swiftly removing road grime from windshields affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SONAX - Corporate Logo
ES#:
4491681
Mfg#:
02711410
In Stock
$12.99 USD
Free Shipping
on orders $49 and up

Timing Belt Tensioner Adjustment Tool - 60* Offset (7" Length)

ES#1306820 - w-143 - Timing Belt Tensioner Adjustment Tool - 60* Offset (7" Length) - The Right Tool for Tensioning VW/Audi Timing Belts - Schwaben - Audi Volkswagen
ECS Tuning recommends this product.

The Right Tool for Tensioning VW/Audi Timing Belts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Schwaben - Corporate Logo
ES#:
1306820
Mfg#:
W-143
In Stock
ON SALE! SAVE 25%
$38.99

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

$29.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Motorsport Phone Mount

ES#4375442 - PM-1 - Motorsport Phone Mount - The perfect mount to display the Apex Pro app! - Apex Pro - Audi BMW Volkswagen Mercedes Benz MINI Porsche

The perfect mount to display the Apex Pro app! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Apex Pro - Corporate Logo
ES#:
4375442
Mfg#:
PM-1
Ships in 9 Business Days
Auto Notify
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

419 Piece Metric O-Ring Assortment Kit

ES#3613116 - WLMW5203 - 419 Piece Metric O-Ring Assortment Kit - Many uses around the garage and home - Performance Tool - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Many uses around the garage and home affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Performance Tool - Corporate Logo
ES#:
3613116
Mfg#:
WLMW5203
In Stock
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Metal Valve Stem - Silver

ES#4066552 - HW-OEM-VALVE-SV - Metal Valve Stem - Silver - Replace your old valve stem with this brand new metal valve stem from APEX Wheels that is design to match the color of your wheels! - APEX Wheels - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Replace your old valve stem with this brand new metal valve stem from APEX Wheels that is design to match the color of your wheels! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
APEX Wheels - Corporate Logo
ES#:
4066552
Mfg#:
HW-OEM-VALVE-SV
Ships in 2 Business Days
$17.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

52mm Electric Boost Gauge - 30inHg~30 PSI Amber/White

ES#3176365 - 216BFWAEBOSM.PSI - 52mm Electric Boost Gauge - 30inHg~30 PSI Amber/White - Includes tubing kit, adapter and quick connectors - Prosport Performance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Includes tubing kit, adapter and quick connectors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Prosport Performance - Corporate Logo
ES#:
3176365
Mfg#:
216BFWAEBOSM.PSI
In Stock
$80.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

M14x1.5 Wheel Stud - 70mm - Priced Each

ES#2784615 - PRD90CH5 - M14x1.5 Wheel Stud - 70mm - Priced Each - 90mm overall length, 70mm length from hub, 57.5mm threaded length from hub - ECS - Audi Volkswagen

90mm overall length, 70mm length from hub, 57.5mm threaded length from hub affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Up to 25mm spacers only

Brand:
ECS - Corporate Logo
ES#:
2784615
Mfg#:
PRD90CH5
In Stock
ON SALE! SAVE 25%
$27.99

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

$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

3/8" Dr Click Torque Wrench

ES#4370646 - M202-P - 3/8" Dr Click Torque Wrench - Professional style. - Performance Tool - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Professional style. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Performance Tool - Corporate Logo
ES#:
4370646
Mfg#:
M202-P
Ships in 5 Business Days
$35.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

K&N Air Filter Cleaning Kit - Aerosol

ES#3491802 - 99-5000KT - K&N Air Filter Cleaning Kit - Aerosol - Preserve & maintain your air filter for a lifetime like it was designed to use - K&N - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Preserve & maintain your air filter for a lifetime like it was designed to use affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shippi

Brand:
K&N - Corporate Logo
ES#:
3491802
Mfg#:
99-5000KT
In Stock
$24.00

This product was last offered at the strikethrough price on
05-27-2026

$23.99 USD
Free Shipping
on orders $49 and up

Double-Walled Exhaust Tips - Polished Diamond-Black

ES#3613175 - TPK0003 - Double-Walled Exhaust Tips - Polished Diamond-Black - Pair of slash-cut double-walled 4 exhaust tips with 2.5" inlets - APR - Audi Volkswagen Porsche

Pair of slash-cut double-walled 4� exhaust tips with 2.5" inlets 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#:
3613175
Mfg#:
TPK0003
Ships in 5 Business Days
51% off MSRP

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

$328.99

This product was last offered at the strikethrough price on
06-24-2026

$160.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

2.5" Stainless Steel V-band Assembly - Priced Each

ES#4007186 - 028092ecs04aKT - 2.5" Stainless Steel V-band Assembly - Priced Each - Create a leak-proof connection for your custom exhaust project. Features locating ring for ease of alignment. - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Create a leak-proof connection for your custom exhaust project. Features locating ring for ease of alignment. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4007186
Mfg#:
028092ECS04AKT
In Stock
ON SALE! SAVE 25%
$49.99

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

$37.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Compact Fluid Cooler With 5/16" Or 8mm Connections

ES#3639612 - 034-406-Z002 - Compact Fluid Cooler With 5/16" Or 8mm Connections - Small compact cooler for powersteering, transmission, fuel or oil use. - 034Motorsport - Audi Volkswagen

Small compact cooler for powersteering, transmission, fuel or oil use. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3639612
Mfg#:
034-406-Z002
In Stock
ON SALE! SAVE 10%
$78.00

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

$70.20 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

PSB-1: PowerSafe Boost & Air/Fuel Ratio Gauge

ES#4004706 - inn3892 - PSB-1: PowerSafe Boost & Air/Fuel Ratio Gauge - Combines Innovate's patented DirectDigital™ O2 sensor control technology, an OLED display, and a smart safety override circuit for your high performance vehicle - Innovate Motorsports - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Combines Innovate's patented DirectDigital™ O2 sensor control technology, an OLED display, and a smart safety override circuit for your high performance vehicle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Innovate Motorsports - Corporate Logo
ES#:
4004706
Mfg#:
INN3892
In Stock at Vendor
Limited Qty Sale
$399.00

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

$372.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MOMO MOD.78 Steering Wheel - 330mm

ES#3027342 - TMS301059 - MOMO MOD.78 Steering Wheel - 330mm - Customize your driving experience with this fine suede steering wheel - MOMO - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Customize your driving experience with this fine suede steering wheel affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MOMO - Corporate Logo
ES#:
3027342
Mfg#:
TMS301059
In Stock at Vendor
$279.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Battery Terminal and Wiper Arm Puller - Bavarian Autosport

ES#3673932 - B8800093 - Battery Terminal and Wiper Arm Puller - Bavarian Autosport - Removes battery terminals and bolted on wiper arms. - Bav Auto Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

Removes battery terminals and bolted on wiper arms. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bav Auto Tools - Corporate Logo
ES#:
3673932
Mfg#:
B8800093
In Stock
ON SALE! SAVE 25%
$23.99

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

$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hella Horn - High-Tone

ES#3508540 - 7424011 - Hella Horn - High-Tone - 12 V, 500 Hz with Bracket - Hella - Audi BMW Volkswagen Mercedes Benz MINI Porsche

12 V, 500 Hz with Bracket affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hella - Corporate Logo
ES#:
3508540
Mfg#:
7424011
In Stock
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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