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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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034Motorsport Billet Oil Cap - EA839

ES#4782771 - 034-110-Z018 - 034Motorsport Billet Oil Cap - EA839 - Transform your engine bay with the beautiful and sexy 034Motorsport Billet Oil Cap. - 034Motorsport - Audi Porsche

Transform your engine bay with the beautiful and sexy 034Motorsport Billet Oil Cap. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4782771
Mfg#:
034-110-Z018
In Stock
ON SALE! SAVE 10%
$146.00

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

$131.40 USD
Free Shipping

VWR Stud & Nut Conversion Kit - R13 Ball Seat - 70mm Studs

ES#3570417 - VWR630000 - VWR Stud & Nut Conversion Kit - R13 Ball Seat - 70mm Studs - Replace those fussy bolts with Racingline's high tensile stud & lightweight nut conversion - Racingline - Audi Volkswagen

Replace those fussy bolts with Racingline's high tensile stud & lightweight nut conversion affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
3570417
Mfg#:
VWR630000
Ships on Aug 3, 2026
Auto Notify
ON SALE! SAVE 10%
$206.99

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

$185.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Lug Bolts (Set of 10) - 37mm

ES#3570136 - MS100175 - APR Lug Bolts (Set of 10) - 37mm - Black zinc coated 37mm ball set wheel bolts to be used with 10mm wheel spacers - APR - Audi Volkswagen

Black zinc coated 37mm ball set wheel bolts to be used with 10mm 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#:
3570136
Mfg#:
MS100175
In Stock
12% off MSRP

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

$66.99

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

$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Drop In Replacement Air Filter

ES#3988613 - E-0646 - Drop In Replacement Air Filter - High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime - K&N - Audi

High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
K&N - Corporate Logo
ES#:
3988613
Mfg#:
E-0646
In Stock
$83.99

This product was last offered at the strikethrough price on
01-20-2026

$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front 2-Piece Brake Rotors - Pair (350x34)

ES#4429973 - 034-301-1008 - Front 2-Piece Brake Rotors - Pair (350x34) - 034Motorsport 350mmx34mm 2-Piece Floating Front Brake Rotor Upgrade Kit - 034Motorsport - Audi

034Motorsport 350mmx34mm 2-Piece Floating Front Brake Rotor Upgrade Kit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4429973
Mfg#:
034-301-1008
In Stock
ON SALE! SAVE 10%
$1050.00

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

$945.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Wheel Bolt - 14x1.5x40mm - Priced Each

ES#3560828 - S17D40R13 - Ball Seat Wheel Bolt - 14x1.5x40mm - 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#:
3560828
Mfg#:
S17D40R13
Back Ordered
Auto Notify
ON SALE! SAVE 25%
$15.99

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

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4 S-Line / S4 Grille Accent Set - Gloss Black

ES#3991472 - 028800ECS01 - Audi B9 A4 S-Line / S4 Grille Accent Set - Gloss Black - Upgrade your exterior styling - ECS - Audi

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

Fits up to 2019 model year with *pre-facelift* front bumpers

Brand:
ECS - Corporate Logo
ES#:
3991472
Mfg#:
028800ECS01
In Stock
ON SALE! SAVE 20%
$292.99

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

$234.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump - 4 Bolt

ES#4699390 - 06M121013D - Water Pump - 4 Bolt - New 4 bolt water pump. Does not include pulley - Hepu - Audi Porsche

New 4 bolt water pump. Does not include pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hepu - Corporate Logo
ES#:
4699390
Mfg#:
06M121013D
In Stock
$274.99

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

$260.99 USD
Free Shipping
on orders $49 and up

Billet Aluminum Front Strut Brace

ES#3199709 - 034-603-0012 - Billet Aluminum Front Strut Brace - Bolt-on upgrade for factory strut brace - Engineered to enhance handling dynamics and performance! - 034Motorsport - Audi

Bolt-on upgrade for factory strut brace - Engineered to enhance handling dynamics and performance! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3199709
Mfg#:
034-603-0012
Ships in 3 Business Days
ON SALE! SAVE 10%
$515.00

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

$463.50 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stainless Steel Racing Catalyst for B9 Audi S4/S5

ES#4005390 - 034-105-4045 - Stainless Steel Racing Catalyst for B9 Audi S4/S5 - Offers increased horsepower and torque throughout the powerband, reduced turbocharger lag, improved throttle response, and an enhanced exhaust note - 034Motorsport - Audi

Offers increased horsepower and torque throughout the powerband, reduced turbocharger lag, improved throttle response, and an enhanced exhaust note affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4005390
Mfg#:
034-105-4045
In Stock
ON SALE! SAVE 36%
$1700.00

This product was last offered at the strikethrough price on
03-08-2026

$1080.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AWE Track Edition Exhaust System - Audi B9 S4 3.0T

ES#4727526 - AWEB9S4TK - AWE Track Edition Exhaust System - Audi B9 S4 3.0T - Equipped with the same precision-engineering as its Touring Edition counterpart, minus the resonators up front and 180 Technology resonators in the rear. - AWE - Audi

Equipped with the same precision-engineering as its Touring Edition counterpart, minus the resonators up front and 180 Technology® resonators in the rear. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AWE - Corporate Logo
ES#:
4727526
Mfg#:
AWEB9S4TK
In Stock
Starting at $2155.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 5mm With Black Ball Seat Bolts

ES#2748278 - 6-ECS-015 - Wheel Spacer & Bolt Kit - 5mm With Black Ball Seat Bolts - Get the right size wheel spacer for your Audi - ECS - Audi

Get the right size wheel spacer for your Audi affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits OEM wheels, or wheels that use OEM ball seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748278
Mfg#:
6-ECS-015
In Stock
ON SALE! SAVE 25%
$140.99

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

$105.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Transmission Oil Pan With Oil Change Kit

ES#4830302 - 0D5398009Bkit1 - Transmission Oil Pan With Oil Change Kit - Includes oil drain plug, gasket, pan, 7-Liter ATF, and hardware! - Vaico - Audi

Includes oil drain plug, gasket, pan, 7-Liter ATF, and hardware! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles from the 2020 model year only

Brand:
Vaico - Corporate Logo
ES#:
4830302
Mfg#:
0D5398009BKIT1
In Stock at Vendor
$915.99 USD
Free Shipping
on orders $49 and up

APR Upgraded Ignition Coil - Grey - Priced Each

ES#4164358 - MS100203 - APR Upgraded Ignition Coil - Grey - Priced Each - 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 Volkswagen Porsche

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!
CARB certified for sale in all 50 states

Brand:
APR - Corporate Logo
ES#:
4164358
Mfg#:
MS100203
EO#:
D-783-5
In Stock
12% off MSRP

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

$59.95

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

$52.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

18" Style 628 Wheels - Set Of Four

ES#2143327 - 628-1 - 18" Style 628 Wheels - Set Of Four - 18"x8" ET35 66.6CB 5x112 Gunmetal / Machined Face - Alzor - Audi

18"x8" ET35 66.6CB 5x112 Gunmetal / Machined Face affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Alzor - Corporate Logo
ES#:
2143327
Mfg#:
628-1
In Stock
ON SALE! SAVE 32%
$1175.99

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

$799.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4/S4 Front Lip Spoiler - Gloss Black & Grille Accent Set - Gloss Black

ES#4751328 - 028802ECS01EBKT - Audi B9 A4/S4 Front Lip Spoiler - Gloss Black & Grille Accent Set - Gloss Black - Upgrade your exterior styling! - Enthusiast Bundles - Audi

Upgrade your exterior styling! 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 up to 2019 model year with *pre-facelift* front bumpers

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751328
Mfg#:
028802ECS01EBKT
In Stock
ON SALE! SAVE 39%
$657.78

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

$399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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