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Audi B9 A4 Quattro 2.0T

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Audi B9 A4 Quattro 2.0T Most Popular Parts

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

ES#2603080 - 002411ECS03AKT - Wheel Spacer & Bolt Kit - 15mm With Conical Seat Bolts - Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels - ECS - Audi

Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2603080
Mfg#:
002411ECS03AKT
Ships in 9 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

Performance S-Type Cat-Back Exhaust System

ES#3689898 - 140761 - Performance S-Type Cat-Back Exhaust System - 2.00", 2.75", & 3.00" diameter stainless steel tubing with dual exit, 4" single polished tips - Borla - Audi

2.00", 2.75", & 3.00" diameter stainless steel tubing with dual exit, 4" single polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Borla - Corporate Logo
ES#:
3689898
Mfg#:
140761
Ships in 10 Business Days
$1930.99 USD

Replacement MQB Drain Plug O-Ring - Priced Each

ES#3048195 - 9263K126 - Replacement MQB Drain Plug O-Ring - Priced Each - Finally, a replacement O-ring for your plastic oil pan's drain plug! Made from Viton Fluoroelastomer Rubber. - ECS - Audi Volkswagen Porsche

Finally, a replacement O-ring for your plastic oil pan's drain plug! Made from Viton® Fluoroelastomer Rubber. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3048195
Mfg#:
9263K126
In Stock
ON SALE! SAVE 25%
$4.99

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

$3.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 8mm with Black Ball Seat Bolts

ES#2788501 - 002411ECS04A8KT2 - Wheel Spacer & Bolt Kit - 8mm with Black Ball Seat Bolts - Includes everything you need to install our new wheel-centric spacers on two wheels - ECS - Audi

Includes everything you need to install our new wheel-centric spacers on two wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Designed to be used with OE wheels only

Brand:
ECS - Corporate Logo
ES#:
2788501
Mfg#:
002411ECS04A8KT2
Ships on Nov 4, 2026
ON SALE!
$134.99

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

$128.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

18" F103 - Set Of Four

18" x 8.5" ET42 5x112 - Gloss Black affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
F1R Wheels - Corporate Logo
ES#:
4474121
Mfg#:
F10318855112GBKT
In Stock at Vendor
$960.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Stud Conversion Kit

ES#2806943 - 001467ECS01KT4 - Ball Seat Stud Conversion Kit - Make wheel changes faster and easier - ECS - Audi Volkswagen

Make wheel changes faster and easier affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Includes 2 different length studs for up to 10mm spacers for 2 wheels and 20mm spacers for 2 wheels.

Brand:
ECS - Corporate Logo
ES#:
2806943
Mfg#:
001467ECS01KT4
In Stock
ON SALE!
$201.99

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

$191.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

H8 Super White Bulb - Pair

ES#2526575 - ZZH8BSSWa - H8 Super White Bulb - Pair - Similar to 6000k HID color, increase intensity & visual appeal with a light blue hue - ZiZa - Audi BMW Volkswagen MINI Porsche

Similar to 6000k HID color, increase intensity & visual appeal with a light blue hue affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ZiZa - Corporate Logo
ES#:
2526575
Mfg#:
ZZH8BSSWA
In Stock
ON SALE! SAVE 10%
$29.99

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

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

19" Rohana RC7 Wheels - Set Of Four

ES#3245512 - rc719855112msKT1 - 19" Rohana RC7 Wheels - Set Of Four - 19x8.5 ET42 5x112 66.6CB - Machine Silver - Rohana Wheels - Audi BMW Mercedes Benz MINI

19x8.5 ET42 5x112 66.6CB - Machine Silver affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rohana Wheels - Corporate Logo
ES#:
3245512
Mfg#:
RC719855112MSKT1
Ships on Jul 16, 2026
$1912.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" Rohana RC7 Wheels - Set Of Four

ES#3245511 - rc719855112msKT - 19" Rohana RC7 Wheels - Set Of Four - 19x8.5 ET25 5x112 66.6CB - Machine Silver - Rohana Wheels - Audi

19x8.5 ET25 5x112 66.6CB - Machine Silver affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rohana Wheels - Corporate Logo
ES#:
3245511
Mfg#:
RC719855112MSKT
Ships on Jul 16, 2026
$1912.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

40k Service Kit

ES#4821602 - 8W0133843CKT1 - 40k Service Kit - This kit feature Hengst Charcoal Lined Cabin Air Filter, Air Filter, Bosch spark Plugs, Liqi-Moly Leichtlauf 5w-40 Oil, and Rein drain plug - Assembled By ECS - Audi

This kit feature Hengst Charcoal Lined Cabin Air Filter, Air Filter, Bosch spark Plugs, Liqi-Moly Leichtlauf 5w-40 Oil, and Rein drain plug affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with CYMC engine code only

Brand:
Assembled By ECS - Corporate Logo
ES#:
4821602
Mfg#:
8W0133843CKT1
In Stock
ON SALE!
$191.99

This product was last offered at the strikethrough price on
06-19-2026

$190.92 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

RacingLine Higher Output Ignition Coil - Red - Priced Each

ES#4708244 - VWR900001 - RacingLine Higher Output Ignition Coil - Red - Priced Each - Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. - Racingline - Audi Volkswagen

Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
4708244
Mfg#:
VWR900001
Ships in 1-3 days
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Conical Seat Tuner Spline Bolt Set - Long Length - Black

ES#3420201 - LB14x15BL - Conical Seat Tuner Spline Bolt Set - Long Length - Black - Full set of black tuner style, socket-specific lug bolts. 14x1.5x40mm - Rohana Wheels - Audi BMW Volkswagen

Full set of black tuner style, socket-specific lug bolts. 14x1.5x40mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rohana Wheels - Corporate Logo
ES#:
3420201
Mfg#:
LB14X15BL
In Stock
$90.00 USD
Free Shipping

Rear Performance Air Ride Kit

ES#3972077 - 78670 - Rear Performance Air Ride Kit - Allow your B9 Audi to sit on the ground! - Air Lift - Audi

Allow your B9 Audi to sit on the ground! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Air Lift - Corporate Logo
ES#:
3972077
Mfg#:
78670
Ships in 4 Business Days
$1889.99 USD
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacers - 17.5mm (Pair)

ES#2167463 - 002411ECS03A18KT - ECS Wheel Spacers - 17.5mm (Pair) - Add some style to your vehicle with these wheel spacers - ECS - Audi BMW Porsche

Add some style to your vehicle 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#:
2167463
Mfg#:
002411ECS03A18KT
In Stock
ON SALE! SAVE 25%
$119.99

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

$89.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cabin Air Filter - Priced Each

ES#4809677 - 4M0819439B - Cabin Air Filter - Priced Each - Filters odor from reaching the cabin - Mahle - Audi

Filters odor from reaching the cabin affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle - Corporate Logo
ES#:
4809677
Mfg#:
4M0819439B
In Stock at Vendor
$43.99

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

$41.99 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank

ES#4753021 - 8W0121405L - Coolant Expansion Tank - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank - URO - Audi

Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank 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:
URO - Corporate Logo
ES#:
4753021
Mfg#:
8W0121405L
In Stock
$81.99 USD
Free Shipping

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

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