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Audi A4 Performance Parts & Upgrades

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DR Series Wheel Spacer - 20mm (1 Pair) - Silver

ES#5110 - 4055571 - DR Series Wheel Spacer - 20mm (1 Pair) - Silver - Fine tune your stance and improve handling - H&R - Audi Volkswagen

Fine tune your stance and improve handling 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
5110
Mfg#:
4055571
Ships in 4 Business Days
10% off MSRP

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

$149.99

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

$134.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supertech Stainless Intake Valve - 1.8T/2.7T - Priced Each

ES#3647467 - ST-AIVN-1103S - Supertech Stainless Intake Valve - 1.8T/2.7T - Priced Each - Stock sized valve head diameter, single groove keeper setup for high RPM use - Supertech - Audi Volkswagen

Stock sized valve head diameter, single groove keeper setup for high RPM use *Valves priced individually - For 1.8T - qty 12 needed / For 2.7T - qty 18 needed - Please see long description for additional valve seal/keeper informa

Brand:
Supertech - Corporate Logo
ES#:
3647467
Mfg#:
ST-AIVN-1103S
Back Ordered
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Carrier Mount Insert Kit

ES#2966689 - 034-505-2016 - Rear Differential Carrier Mount Insert Kit - Installation is very simple, can be performed in minutes, and is completely reversible. - 034Motorsport - Audi

Installation is very simple, can be performed in minutes, and is completely reversible.

Brand:
034Motorsport - Corporate Logo
ES#:
2966689
Mfg#:
034-505-2016
Ships in 3 Business Days
$134.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High Performance Aluminum Radiator

ES#4617221 - 7204 - High Performance Aluminum Radiator - Featuring an all-aluminum tank and core plus OE-style quick connects. Lower engine temperatures mean more power and longer life of engine components! - CSF - Audi Volkswagen

Featuring an all-aluminum tank and core plus OE-style quick connects. Lower engine temperatures mean more power and longer life of engine components! 2X Entries For Our 25th Anniversary Sweepstakes!
Manual transmissions only

Brand:
CSF - Corporate Logo
ES#:
4617221
Mfg#:
7204
Ships in 4 Business Days
$535.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Lower Control Arm Bushing Set - Inner

ES#2650309 - PFF3-211Bx2 - Front Lower Control Arm Bushing Set - Inner - Improves handling and control - Upgrade to a more engaging driving experience - Powerflex Black Series - Audi Volkswagen

Improves handling and control - Upgrade to a more engaging driving experience For the straight control arm

Brand:
Powerflex Black Series - Corporate Logo
ES#:
2650309
Mfg#:
PFF3-211BX2
Ships in 2 Business Days
$88.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B6 A4/S4 Master LED Interior Lighting Kit

ES#2215391 - B6A4LEDINT - B6 A4/S4 Master LED Interior Lighting Kit - Transform your complete interior in minutes with new LED interior bulbs from Ziza - ZiZa - Audi

Transform your complete interior in minutes with new LED interior bulbs from Ziza 10X Entries For Our 25th Anniversary Sweepstakes!
Sedan models only

Brand:
ZiZa - Corporate Logo
ES#:
2215391
Mfg#:
B6A4LEDINT
In Stock
ON SALE! SAVE 50%
$117.99

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

$59.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B6/B7 Stage 2 Engine Mount Kit With Snub Mount

ES#4044639 - ebfib56es2KT - Audi B6/B7 Stage 2 Engine Mount Kit With Snub Mount - Keep your engine planted and transfer as much power to the ground as possible - Black Forest Industries - Audi Volkswagen

Keep your engine planted and transfer as much power to the ground as possible B7 Audi A4 models with the Tiptronic transmission are equipped with active mounts and will trigger a MIL if resisters are not added.

Brand:
Black Forest Industries - Corporate Logo
ES#:
4044639
Mfg#:
EBFIB56ES2KT
Ships on Aug 27, 2026
$529.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lightweight Aluminum Flywheel (9lbs)

ES#2576185 - SA01A - Lightweight Aluminum Flywheel (9lbs) - Unleash hidden power by reducing rotational mass - Spec Clutches - Audi

Unleash hidden power by reducing rotational mass For use with Spec clutch kits only

Brand:
Spec Clutches - Corporate Logo
ES#:
2576185
Mfg#:
SA01A
Ships in 4 Business Days
$529.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Front Brake Service Kit

ES#2562104 - 8E0301ADSGMTKT2 - Performance Front Brake Service Kit - Featuring ECS V5 Slotted rotors and ECS EP24 Enthusiast Performance pads - Assembled By ECS - Audi

Featuring ECS V5 Slotted rotors and ECS EP24 Enthusiast Performance pads 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2562104
Mfg#:
8E0301ADSGMTKT2
Ships in 6 Business Days
ON SALE!
$543.99

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

$528.62 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" Wheel Spacer Flush Fit Kit - Polished Bolts

ES#3240972 - 023881ECS02KT - 19" Wheel Spacer Flush Fit Kit - Polished Bolts - Includes ECS spacers & Polished bolts to obtain a flush look on your OE 19" wheels - ECS - Audi

Includes ECS spacers & Polished bolts to obtain a flush look on your OE 19" wheels 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3240972
Mfg#:
023881ECS02KT
Back Ordered
Auto Notify
ON SALE!
$270.99

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

$262.86 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

8MM Wheel Spacers - Pair

ES#4785749 - SP204GBS14 - 8MM Wheel Spacers - Pair - Wheel spacer kit with 14x35mm Ball seat bolts For OEM Wheels - Black Forest Industries - Audi Volkswagen

Wheel spacer kit with 14x35mm Ball seat bolts For OEM Wheels

Brand:
Black Forest Industries - Corporate Logo
ES#:
4785749
Mfg#:
SP204GBS14
Ships on Aug 31, 2026
$104.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Lower Control Arm Kit

ES#3183691 - mrs-au-1911-1912 - Front Lower Control Arm Kit - Includes upgraded lower straight and curved control arms - Megan Racing - Audi

Includes upgraded lower straight and curved control arms

Brand:
Megan Racing - Corporate Logo
ES#:
3183691
Mfg#:
MRS-AU-1911-1912
Back Ordered
Auto Notify
$524.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supertech Inconel Exhaust Valve Kit

ES#3647522 - ST-AEVI-1103SKT - Supertech Inconel Exhaust Valve Kit - Stock sized valve head diameter, single groove keeper setup for high RPM use - Includes Supertech valves, single groove keepers and IE valve seals - Assembled By ECS - Audi Volkswagen

Stock sized valve head diameter, single groove keeper setup for high RPM use - Includes Supertech valves, single groove keepers and IE valve seals 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3647522
Mfg#:
ST-AEVI-1103SKT
Back Ordered
$519.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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