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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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Audi Thrust Arm Monoball Upgrade Kit - Front Lower, Inner

ES#4389692 - 006418la01KT - Audi Thrust Arm Monoball Upgrade Kit - Front Lower, Inner - Eliminate deflection caused by stock rubber bushings! - ECS - Audi

Eliminate deflection caused by stock rubber bushings! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4389692
Mfg#:
006418LA01KT
In Stock
ON SALE! SAVE 15%
$438.99

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

$373.14 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Cross Drilled Brake Rotors - Pair (330x22)

ES#4141822 - 4h0615601hdKT - Rear Cross Drilled Brake Rotors - Pair (330x22) - Features an Anti-Corrosion coating "Anti-Z" - Zimmermann - Audi

Features an Anti-Corrosion coating "Anti-Z" 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:
Zimmermann - Corporate Logo
ES#:
4141822
Mfg#:
4H0615601HDKT
In Stock
$370.99

This product was last offered at the strikethrough price on
03-23-2026

$337.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" A01 Flow Formed Wheels - Set Of Four

ES#4045239 - whl00014KT - 19" A01 Flow Formed Wheels - Set Of Four - 19"x8.5" ET45 5x112 21lbs - Satin Black Finish - APR - Audi Volkswagen MINI

19"x8.5" ET45 5x112 21lbs - Satin Black Finish 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#:
4045239
Mfg#:
WHL00014KT
In Stock
$1479.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Lug Bolts (Set of 10) - 45mm

ES#3570138 - MS100177 - APR Lug Bolts (Set of 10) - 45mm - Black zinc coated 45mm ball set wheel bolts to be used with 15mm wheel spacers - APR - Audi Volkswagen

Black zinc coated 45mm ball set wheel bolts to be used with 15mm 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#:
3570138
Mfg#:
MS100177
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.

$63.95

This product was last offered at the strikethrough price on
03-31-2026

$56.35 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Dynamic+ StreetSport Front Brake Pad Set

ES#4845282 - 034-302-0026 - 034Motorsport Dynamic+ StreetSport Front Brake Pad Set - Semi-metallic pads that offer low dust and noise for comfortable everyday use, while delivering high friction, superior modulation, and exceptional stopping power! - 034Motorsport - Audi

Semi-metallic pads that offer low dust and noise for comfortable everyday use, while delivering high friction, superior modulation, and exceptional stopping power! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4845282
Mfg#:
034-302-0026
In Stock
ON SALE! SAVE 10%
$387.00

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

$348.30 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Radiator Upgrade

ES#4900053 - 034-102-1005 - 034Motorsport Radiator Upgrade - Replace your factory radiator with a larger, more efficient radiator to improve cooling capacity and maintain peak performance. - 034Motorsport - Audi

Replace your factory radiator with a larger, more efficient radiator to improve cooling capacity and maintain peak performance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4900053
Mfg#:
034-102-1005
In Stock
ON SALE! SAVE 10%
$800.00

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

$720.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" APEX ML-10RT Forged Wheels - Set Of Four

ES#4821563 - ML10199525112RKT - 19" APEX ML-10RT Forged Wheels - Set Of Four - 19x9.5 ET25 5x112 66.6CB - Machined Lip Race Silver - APEX Wheels - Audi BMW Mercedes Benz

19x9.5 ET25 5x112 66.6CB - Machined Lip Race Silver affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
APEX Wheels - Corporate Logo
ES#:
4821563
Mfg#:
ML10199525112RKT
In Stock
$3596.00 USD

19" APEX VS-5RS Wheels - Square Set Of Four

ES#4699683 - vs5rs199sqanKT - 19" APEX VS-5RS Wheels - Square Set Of Four - Forged 19x9" ET25 5X112 - Anthracite - APEX Wheels - Audi BMW

Forged 19x9" ET25 5X112 - Anthracite affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
APEX Wheels - Corporate Logo
ES#:
4699683
Mfg#:
VS5RS199SQANKT
Ships in 5 Business Days
$3556.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 10mm With Ball Seat Bolts

ES#2603073 - 002411ECS02AKT2 - Wheel Spacer & Bolt Kit - 10mm With Ball Seat Bolts - Complete kit for two wheels, includes everything you need to install spacers - ECS - Audi

Complete kit for two wheels, includes everything you need to install spacers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits OE wheels, or wheels that use OE ball seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2603073
Mfg#:
002411ECS02AKT2
Back Ordered
Auto Notify
ON SALE!
$140.99

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

$133.94 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" APEX SM-10RS Wheels - Square Set Of Four

ES#4742989 - sm10rs1995smbkKT - 19" APEX SM-10RS Wheels - Square Set Of Four - Forged 19x9.5" ET25 5x112 - Satin Black - APEX Wheels - Audi

Forged 19x9.5" ET25 5x112 - Satin Black affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
APEX Wheels - Corporate Logo
ES#:
4742989
Mfg#:
SM10RS1995SMBKKT
Back Ordered
$3516.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

18" Style 040 Wheels - Set Of Four

ES#2738553 - 040-4kt1 - 18" Style 040 Wheels - Set Of Four - 18x8.5" ET40 5x112 66.6CB - Silver/Machined Face - Alzor - Audi MINI

18x8.5" ET40 5x112 66.6CB - Silver/Machined Face affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Front wheels require an 10mm spacer to clear the brake calipers

Brand:
Alzor - Corporate Logo
ES#:
2738553
Mfg#:
040-4KT1
In Stock
ON SALE! SAVE 25%
$1166.99

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

$875.01 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Wheel Bolt - 14x1.5x37mm - Priced Per Pair

ES#4164434 - S17D37R13znni2 - Ball Seat Wheel Bolt - 14x1.5x37mm - Priced Per Pair - 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#:
4164434
Mfg#:
S17D37R13ZNNI2
Ships Today
ON SALE! SAVE 15%
$7.99

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

$6.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

H&R VTF Adjustable Lowering Springs

ES#3479162 - 23007-1 - H&R VTF Adjustable Lowering Springs - More lowering, more features, and more personalization! Average Lowering of 0.75 - 1.6" front & rear. - H&R - Audi

More lowering, more features, and more personalization! Average Lowering of 0.75 - 1.6" front & rear. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! Fits both models with adaptive damping suspension and without - Lowering height will vary between suspension ty

Brand:
H&R - Corporate Logo
ES#:
3479162
Mfg#:
23007-1
Ships in 3 Business Days
$1150.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 S4 Intercooler Charge Pipe Kit

ES#3638868 - 023880ecs01aKT - Audi B9 S4 Intercooler Charge Pipe Kit - Increase intake air flow with our high flow charge pipes for your ECS Tuning or OEM intercooler! - ECS - Audi

Increase intake air flow with our high flow charge pipes for your ECS Tuning or OEM intercooler! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3638868
Mfg#:
023880ECS01AKT
In Stock
ON SALE! SAVE 20%
$448.99

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

$359.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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

ES#3559513 - 023940ECS01KT - Front 2-Piece Scalloped Brake Rotors - Pair (350x34) - Direct bolt-on upgrade to Tru-Float scalloped style rotors. Over 15% less weight! - ECS - Audi

Direct bolt-on upgrade to Tru-Float scalloped style rotors. Over 15% less weight! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3559513
Mfg#:
023940ECS01KT
In Stock
$1128.97

This product was last offered at the strikethrough price on
04-16-2026

$1121.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE HPFP Internal Upgrade

ES#4706077 - IEFUVZ1 - IE HPFP Internal Upgrade - The largest volume possible piston and cylinder design to unlock fuel delivery for hybrid turbos and Stage 1/2 Plus ECU tunes. - Integrated Engineering - Audi

The largest volume possible piston and cylinder design to unlock fuel delivery for hybrid turbos and Stage 1/2 Plus ECU tunes. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4706077
Mfg#:
IEFUVZ1
Ships in 1 Business Day
$419.99 USD
Free Shipping
on orders $49 and up

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