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Audi B9 A4 Quattro 2.0T

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Audi B9 A4 Quattro 2.0T Performance Parts & Upgrades

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Wheel Spacer & Bolt Kit - 15mm With Ball Seat Bolts

ES#2603081 - 002411ECS03AKT2 - Wheel Spacer & Bolt Kit - 15mm 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 OEM wheels, or wheels that use OEM ball seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2603081
Mfg#:
002411ECS03AKT2
Ships in 10 Business Days
Auto Notify
ON SALE! SAVE 25%
$171.99

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

$128.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Locking Wheel Bolt Kit

ES#2795753 - 003901ECS45BB - Ball Seat Locking Wheel Bolt Kit - Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x45mm - ECS - Audi Volkswagen

Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x45mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For use with 15-17.5mm spacers

Brand:
ECS - Corporate Logo
ES#:
2795753
Mfg#:
003901ECS45BB
In Stock
ON SALE! SAVE 25%
$82.99

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

$62.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 15mm With Black Ball Seat Bolts

ES#4723527 - 002411ECS03AKBKT - Wheel Spacer & Bolt Kit - 15mm With Black 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 OEM wheels, or wheels that use OEM ball seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
4723527
Mfg#:
002411ECS03AKBKT
Ships in 10 Business Days
Auto Notify
ON SALE! SAVE 25%
$190.99

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

$143.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 20mm With Ball Seat Bolts

ES#2177173 - 6-ECS-024 - Wheel Spacer & Bolt Kit - 20mm With Ball Seat Bolts - Add some style to your Audi with these wheel spacers - ECS - Audi

Add some style to your Audi with these wheel spacers 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#:
2177173
Mfg#:
6-ECS-024
In Stock
ON SALE! SAVE 10%
$179.99

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

$161.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KW V3 Series Coilover Kit

ES#4056866 - 352100BH - KW V3 Series Coilover Kit - The ultimate in coilover technology, featuring double adjustable damping - KW Suspension - Audi

The ultimate in coilover technology, featuring double adjustable damping affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models without factory Electronic Damping Control - For models with 50mm front strut body. Range of lowering is 1.2-2.2" in the front and 1.4-2.4" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
4056866
Mfg#:
352100BH
Ships in 5 Business Days
$3524.00 USD
Free Shipping

DRA Series Wheel Spacers - 20mm (1 Pair)

ES#12121 - 40556654 - DRA Series Wheel Spacers - 20mm (1 Pair) - Add some stance to your vehicle with new spacers - H&R - Audi Mercedes Benz Porsche

Add some stance to your vehicle with new spacers 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!

Brand:
H&R - Corporate Logo
ES#:
12121
Mfg#:
40556654
In Stock
$159.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 A4/A5 4" Direct-Fit Exhaust Tips - Black Chrome - Pair

ES#3476949 - 019490ecs01KT - B9 A4/A5 4" Direct-Fit Exhaust Tips - Black Chrome - Pair - A pair of direct-fit exhaust tips for the B9 A4/A5. No modifications necessary - ECS - Audi

A pair of direct-fit exhaust tips for the B9 A4/A5. No modifications necessary affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3476949
Mfg#:
019490ECS01KT
In Stock
ON SALE!
$167.98

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

$162.94 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EMD Auto 10mm Wheel Spacers - Pair (With Bolts)

ES#4042991 - EMD-SPACER10665B - EMD Auto 10mm Wheel Spacers - Pair (With Bolts) - Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore - Emmanuele Design - Audi

Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Emmanuele Design - Corporate Logo
ES#:
4042991
Mfg#:
EMD-SPACER10665B
Ships in 1 Business Day
$110.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Magnetic Drain Plug - Priced Each

ES#4430826 - VWR180004 - Billet Magnetic Drain Plug - Priced Each - Capture harmful particles to protect your 2.0 TSI EA888 Gen3 & 3B engine - Racingline - Audi Volkswagen Porsche

Capture harmful particles to protect your 2.0 TSI EA888 Gen3 & 3B engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
4430826
Mfg#:
VWR180004
Ships in 3 Business Days
$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Revo Big Brake Kit - Red - (355x32)

The Revo Big Brake Kit comes complete with everything required to upgrade your stopping power. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
REVO - Corporate Logo
ES#:
4499824
Mfg#:
RA841B200200
Back Ordered
$3339.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Revo Big Brake Kit - Black - (380x32)

The Revo Big Brake Kit comes complete with everything required to upgrade your stopping power. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
REVO - Corporate Logo
ES#:
4499826
Mfg#:
RA841B200400
Back Ordered
$3339.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Front Cross Drilled Brake Rotors - Pair (338x30)

ES#3551789 - 100 3378 52KT - Front Cross Drilled Brake Rotors - Pair (338x30) - Zimmerman Sport drilled rotors deliver excellent braking performance! - Zimmermann - Audi

Zimmerman Sport drilled rotors deliver excellent braking performance! 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!
For vehicles with 338x30mm rotors check your rotor size before ordering

Brand:
Zimmermann - Corporate Logo
ES#:
3551789
Mfg#:
100 3378 52KT
In Stock at Vendor
$433.99

This product was last offered at the strikethrough price on
06-20-2026

$369.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Catback Exhaust System - B9 A4

ES#4904361 - IEEXCK8 - IE Catback Exhaust System - B9 A4 - Features high-flow 2.5" piping, 90mm twin exhaust tips, and iE's DroneTrap technology - Integrated Engineering - Audi

Features high-flow 2.5" piping, 90mm twin exhaust tips, and iE's DroneTrap technology affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4904361
Mfg#:
IEEXCK8
In Stock
$1649.99 USD
Free Shipping

Carbon Fiber ECU Cover - Audi B9 A4/A5

ES#3136956 - 019468ECS01A - Carbon Fiber ECU Cover - Audi B9 A4/A5 - Compliment your engine bay and hide away the exposed ECU - ECS - Audi

Compliment your engine bay and hide away the exposed ECU affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3136956
Mfg#:
019468ECS01A
In Stock
ON SALE! SAVE 15%
$214.99

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

$182.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front BSD Series Sport Slotted Rotors - Pair (338x30mm)

ES#4760013 - BSD2026 - Front BSD Series Sport Slotted Rotors - Pair (338x30mm) - Upgrade to a Turbo slotted rotor for improved braking - EBC - Audi

Upgrade to a Turbo slotted rotor for improved braking affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
EBC - Corporate Logo
ES#:
4760013
Mfg#:
BSD2026
Ships in 3 Business Days
5% off MSRP

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

$565.99

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

$536.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9.5 Mid-Facelift S4/A4 S-Line Front Chin Spoilers - Gloss Black

ES#4338535 - 007041la01KT1 - B9.5 Mid-Facelift S4/A4 S-Line Front Chin Spoilers - 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 2019 Mid-Facelift S-Line Bumpers

Brand:
ECS - Corporate Logo
ES#:
4338535
Mfg#:
007041LA01KT1
In Stock
ON SALE! SAVE 25%
$283.99

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

$212.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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