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Audi A3 Performance Parts & Upgrades

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Diverter Valve Block Off Plate

ES#2992471 - CTSHW049 - Diverter Valve Block Off Plate - Commonly used for running aftermarket diverter and blow off valves - CTS - Audi Volkswagen

Commonly used for running aftermarket diverter and blow off valves

Brand:
CTS - Corporate Logo
ES#:
2992471
Mfg#:
CTSHW049
Ships on Nov 2, 2026
ON SALE! SAVE 15%
$29.99

This product was last offered at the strikethrough price on
09-29-2026

$25.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer And Bolt Kit - 10mm With Black Conical Seat Bolts

ES#2748275 - ECS10155KTWBKT1 - ECS Wheel Spacer And Bolt Kit - 10mm With Black Conical Seat Bolts - Comes with everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Comes with everything you need to install spacers on two wheels 10X Entries Into Our F80 M3 Sweepstakes
Recommended for rear fitment only. Features a closed cap, requires removal of factory wheel bearing dust

Brand:
ECS - Corporate Logo
ES#:
2748275
Mfg#:
ECS10155KTWBKT1
In Stock
ON SALE! SAVE 10%
$160.99

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

$144.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

HI-PER Air Induction Kit - Blue

ES#4852541 - 65.10.57B - HI-PER Air Induction Kit - Blue - Enhances turbo response, increases airflow, reduces turbo lag, and provides a 26% increase in airflow! - Neuspeed - Audi Volkswagen

Enhances turbo response, increases airflow, reduces turbo lag, and provides a 26% increase in airflow! For vehicles with secondary air injection only. CARB certified for sale in all 50 states.

Brand:
Neuspeed - Corporate Logo
ES#:
4852541
Mfg#:
65.10.57B
EO#:
D-236-25
Ships in 2 Business Days
$609.00

This product was last offered at the strikethrough price on
09-22-2026

$578.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer And Bolt Kit - 10mm With Conical Seat Bolts

ES#2718433 - ECS10155KTWB - ECS Wheel Spacer And Bolt Kit - 10mm With Conical Seat Bolts - Comes with everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Comes with everything you need to install spacers on two wheels 10X Entries Into Our F80 M3 Sweepstakes
Recommended for rear fitment only. Features a closed cap, requires removal of factory wheel bearing dust

Brand:
ECS - Corporate Logo
ES#:
2718433
Mfg#:
ECS10155KTWB
In Stock
ON SALE! SAVE 15%
$168.99

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

$143.64 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

MST Performance Cold Air Intake System - With High Flow Turbo Inlet

ES#4430342 - VW-MK777 - MST Performance Cold Air Intake System - With High Flow Turbo Inlet - Improves throttle response, and peak power while adding a glorious and aggressive tone under the hood. Includes 3" Turbo Inlet Kit. - MST Performance - Audi Volkswagen

Improves throttle response, and peak power while adding a glorious and aggressive tone under the hood. Includes 3" Turbo Inlet Kit.

Brand:
MST Performance - Corporate Logo
ES#:
4430342
Mfg#:
VW-MK777
Special Order: No Guaranteed ETA
$572.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MST Performance Cold Air Intake System - With High Flow HYBRID Turbo Inlet

Improves throttle response, and peak power while adding a glorious and aggressive tone under the hood. Includes 3" Turbo Inlet Kit. For use with Hybrid turbo applications only

Brand:
MST Performance - Corporate Logo
ES#:
4430343
Mfg#:
VW-MK777V2
Special Order: No Guaranteed ETA
$572.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete Performance Mount Kit

ES#4499983 - RV511M500102 - Complete Performance Mount Kit - The Revo mount upgrade kit is designed to improve the driving experience of your vehicle. - REVO - Audi Volkswagen

The Revo mount upgrade kit is designed to improve the driving experience of your vehicle.

Brand:
REVO - Corporate Logo
ES#:
4499983
Mfg#:
RV511M500102
Back Ordered
$565.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Performance Software - With UniCONNECT+ Cable

ES#4465344 - 2.0-TDI-UC - Unitronic Performance Software - With UniCONNECT+ Cable - Choose the stage that meets your power goals! - Unitronic - Audi Volkswagen

Choose the stage that meets your power goals! This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th
For vehicles with CBEA or CJAA engine code only. Vehicles with DSG require DSG tune.

Brand:
Unitronic - Corporate Logo
ES#:
4465344
Mfg#:
2.0-TDI-UC
In Stock
ON SALE!
Starting at $564.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi 8V.5 A3 Facelift Non S-Line Rear Diffuser & Trunk Spoiler

ES#4751225 - 015495LA01EBKT - Audi 8V.5 A3 Facelift Non S-Line Rear Diffuser & Trunk Spoiler - Add some aggressive styling to your Audi! - Enthusiast Bundles - Audi

Add some aggressive styling to your Audi! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!
Fits facelift non s-line models only from the 2017 model year

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751225
Mfg#:
015495LA01EBKT
In Stock
ON SALE! SAVE 58%
$664.99

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

$280.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Sway Bar - 26mm

ES#3041095 - RC0052FZ26 - Front Sway Bar - 26mm - Adjustable front sway bar - SuperPro - Audi Volkswagen

Adjustable front sway bar

Brand:
SuperPro - Corporate Logo
ES#:
3041095
Mfg#:
RC0052FZ26
Ships in 3 Business Days
$279.99 USD
Free Shipping
on orders $49 and up

ECS Wheel Spacer And Bolt Kit - 12.5mm With Black Ball Seat Bolts

ES#2748276 - ECS10156KTWBKT - ECS Wheel Spacer And Bolt Kit - 12.5mm With Black Ball Seat Bolts - Comes with everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Comes with everything you need to install spacers on two wheels 10X Entries Into Our F80 M3 Sweepstakes
Recommended for rear fitment only. Features a closed cap, requires removal of factory wheel bearing dust

Brand:
ECS - Corporate Logo
ES#:
2748276
Mfg#:
ECS10156KTWBKT
In Stock
ON SALE! SAVE 20%
$174.99

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

$139.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

K04 Performance Software (New APR Customers) - With Program Switching (Fully Loaded)

ES#3659524 - dpp20tk04psKT - K04 Performance Software (New APR Customers) - With Program Switching (Fully Loaded) - Required software to properly upgrade to a K04 turbocharger - APR - Audi Volkswagen

Required software to properly upgrade to a K04 turbocharger Call In Or Chat For Best Price!
This upgrade must be performed at ECS Tuning's facility in Ohio.
This upgrade can only be performed with the car present at our facility.

Brand:
APR - Corporate Logo
ES#:
3659524
Mfg#:
DPP20TK04PSKT
In Stock
ON SALE! SAVE 20%
$699.90

This product was last offered at the strikethrough price on
09-28-2026

$559.92 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

S3 Front Control Arm Bushing - Rear Position - Priced Each

ES#2876544 - 8J0407183 - S3 Front Control Arm Bushing - Rear Position - Priced Each - Improve handling with OE S3 rear position control arm bushings. Fits left or right side. - Febi - Audi Volkswagen

Improve handling with OE S3 rear position control arm bushings. Fits left or right side. We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2876544
Mfg#:
8J0407183
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE Stage 1 ECU Tune With POWERlink Cable

ES#5504710 - IESOVT11 - IE Stage 1 ECU Tune With POWERlink Cable - Gains of up to 51hp and 67tq depending on fuel type. - Integrated Engineering - Audi Volkswagen

Gains of up to 51hp and 67tq depending on fuel type. For vehicles with TSI engines only

Brand:
Integrated Engineering - Corporate Logo
ES#:
5504710
Mfg#:
IESOVT11
In Stock
Starting at $184.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Oil Catch Can System

ES#2954083 - MS100100 - Ultimate Oil Catch Can System - Necessary components to add a catch can system on your MQB EA888 1.8T/2.0T - APR - Audi Volkswagen

Necessary components to add a catch can system on your MQB EA888 1.8T/2.0T Call In Or Chat For Best Price!

The APR Oil Catch Can system requires APR Carbon Fiber Intake System CI100033 for installation

Brand:
APR - Corporate Logo
ES#:
2954083
Mfg#:
MS100100
Ships in 5 Business Days
ON SALE! SAVE 10%
$614.99

This product was last offered at the strikethrough price on
09-28-2026

$553.46 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.

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