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Audi A3 Performance Engine & Drivetrain Parts

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ES#4839642 - 013907LA01-03KT - 1.8T/2.0T Gen3 Diverter Valve Upgrade - Black - The LAST diverter valve you'll ever need! Billet aluminum construction and heavy-duty Viton o-rings make for the ultimate upgrade in longevity and performance. - ECS - Audi Volkswagen Porsche

The LAST diverter valve you'll ever need! Billet aluminum construction and heavy-duty Viton o-rings make for the ultimate upgrade in longevity and performance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4839642
Mfg#:
013907LA01-03KT
In Stock
ON SALE! SAVE 25%
$326.99

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

$245.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4004397 - AMS.21.09.0003-1 - Golf R MK7 Turbo Charge Pipe - 85% larger inlet, and almost 10% larger outlet removes the bottleneck in the charge air system. The charge pipe is a complete bolt on kit that fits as good as the stock piece which means no cutting or trimming! - AMS Performance - Audi Volkswagen

85% larger inlet, and almost 10% larger outlet removes the bottleneck in the charge air system. The charge pipe is a complete bolt on kit that fits as good as the stock piece which means no cutting or trimming! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AMS Performance - Corporate Logo
ES#:
4004397
Mfg#:
AMS.21.09.0003-1
Ships in 3 Business Days
$209.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4416566 - VLK002011P-RED - Stage 1+ Redline Carbon Fiber Power Package  - Flash your ECU and unleash the power your vehicle was meant to have. - CobbTuning - Audi Volkswagen

Flash your ECU and unleash the power your vehicle was meant to have. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CobbTuning - Corporate Logo
ES#:
4416566
Mfg#:
VLK002011P-RED
Ships in 3 Business Days
$1460.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#11994 - MS100016 - APR High Pressure Fuel Pump - Requires APR engine management software to allow for the increased flow of the APR pump. - APR - Audi Volkswagen

Requires APR engine management software to allow for the increased flow of the APR pump. 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!

For vehicles with FSI engines only

Brand:
APR - Corporate Logo
ES#:
11994
Mfg#:
MS100016
Ships on Jun 30, 2026
11% off MSRP

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

$1631.99

This product was last offered at the strikethrough price on
06-03-2026

$1449.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4659696 - T-K04+-FSI - Shuenk Transverse K04+ Turbo Upgrade - A ready-to-install turbocharger with performance and reliability enhancing upgrades - Shuenk - Audi Volkswagen

A ready-to-install turbocharger with performance and reliability enhancing upgrades affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with FSI engines only

Brand:
Shuenk - Corporate Logo
ES#:
4659696
Mfg#:
T-K04+-FSI
Ships in 2 Business Days
$1449.00 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#4759413 - VLK0020010FF-DSG - COBB Stage 1 + Flex Fuel Power Package With DSG / S-Tronic Flashing - Flash your ECU, TCU, and add a high-flow Cobb filter to unleash the power your VW/Audi was meant to have! - CobbTuning - Audi Volkswagen

Flash your ECU, TCU, and add a high-flow Cobb filter to unleash the power your VW/Audi was meant to have! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CobbTuning - Corporate Logo
ES#:
4759413
Mfg#:
VLK0020010FF-DSG
Ships in 3 Business Days
$1445.00 USD
Free Shipping
on orders $49 and up
ES#3537620 - MS100140 - APR Spherical Pendulum Mount Upgrade - Keep your tires planted! - APR - Audi Volkswagen

Keep your tires planted! 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#:
3537620
Mfg#:
MS100140
In Stock
11% off MSRP

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

$402.99

This product was last offered at the strikethrough price on
06-03-2026

$357.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4362295 - UH004-IN4 - 3" Dry Air Filter Element - Fits all Unitronic Cold Air Intake Systems designed for the MQB platform. - Unitronic - Audi Volkswagen

Fits all Unitronic Cold Air Intake Systems designed for the MQB platform. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 5/22/26 - 6/5/26 for a chance to win your Software & UniCONNECT+ Cable for FREE!

Brand:
Unitronic - Corporate Logo
ES#:
4362295
Mfg#:
UH004-IN4
In Stock
$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4271502 - iesovn42dsgKT - Stage 2 IE Performance ECU Tune - Includes DSG Tune & POWERlink Cable - Average gain of 111 horsepower and 233 lb-ft of torque on 91 Octane - Integrated Engineering - Audi Volkswagen

Average gain of 111 horsepower and 233 lb-ft of torque on 91 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States and Canada.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4271502
Mfg#:
IESOVN42DSGKT
In Stock
$1427.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4369228 - 18TSI-IS20-2D-UC - Unitronic Performance Software - Stage 2 IS20 - With UniCONNECT+ Cable & DSG Software - Gain up to 131 horsepower and 125 lb-ft of torque on 93 Octane - Unitronic - Audi Volkswagen

Gain up to 131 horsepower and 125 lb-ft of torque on 93 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 5/22/26 - 6/5/26 for a chance to win your Software & UniCONNECT+ Cable for FREE!
This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th
Requires IS20 Turbo Upgrade in addition to other hardware upgrades. Please see description for details.

Brand:
Unitronic - Corporate Logo
ES#:
4369228
Mfg#:
18TSI-IS20-2D-UC
In Stock
ON SALE! SAVE 10%
$1564.99

This product was last offered at the strikethrough price on
05-21-2026

$1414.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3432408 - 019797ecs01-01KT -  Rear Differential Mount Insert Kit (1 Insert) - Front Position - Launch harder and improve your 0-60 times with our Rear Diff. Mount Insert Kit - ECS - Audi Volkswagen

Launch harder and improve your 0-60 times with our Rear Diff. Mount Insert Kit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3432408
Mfg#:
019797ECS01-01KT
In Stock
ON SALE! SAVE 25%
$61.99

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

$46.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3247652 - 034-509-5024-SD - Street Density Motor Mount - Pair - For long-lasting, consistent performance and comfort - 034Motorsport - Audi Volkswagen

For long-lasting, consistent performance and comfort affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3247652
Mfg#:
034-509-5024-SD
In Stock
$343.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4390797 - VTT-MQB-SIL-RED - VTT MQB Silicone Charge Pipes - Red - Upgrade your MK7s boost path with VTTs high-flow, heat-resistant silicone charge pipesfewer connections, smoother airflow, and stronger hold for cooler temps, faster response, and reliable power. - Vargas Turbo Technologies - Audi Volkswagen

Upgrade your MK7’s boost path with VTT’s high-flow, heat-resistant silicone charge pipes—fewer connections, smoother airflow, and stronger hold for cooler temps, faster response, and reliable power. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4390797
Mfg#:
VTT-MQB-SIL-RED
Ships in 1-2 days
$339.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3579469 - iesoclc2 - Stage 2 IE Performance ECU Tune With POWERlink Cable - Average gain of 64 horsepower and 98 lb-ft of torque on 91 Octane - Integrated Engineering - Audi

Average gain of 64 horsepower and 98 lb-ft of torque on 91 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States.
For vehicles with FSI engine only

Brand:
Integrated Engineering - Corporate Logo
ES#:
3579469
Mfg#:
IESOCLC2
In Stock
$678.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4362314 - UH007-INA - Carbon Fiber Intake System 1.8/2.0 TSI Gen3 MQB - Providing increased power, air velocity, and throttle response, while also decreasing air intake temperatures and turbo lag. - Unitronic - Audi Volkswagen

Providing increased power, air velocity, and throttle response, while also decreasing air intake temperatures and turbo lag. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 5/22/26 - 6/5/26 for a chance to win your Software & UniCONNECT+ Cable for FREE!

Brand:
Unitronic - Corporate Logo
ES#:
4362314
Mfg#:
UH007-INA
Ships in 6 Business Days
$675.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine & Drivetrain Parts

Worn mounts, bushings, and other drivetrain components rob performance. Replace or upgrade your drivetrain with our extensive catalog of mounts, bushings, clutch kits, and more.

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