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Volkswagen MK4 Performance Parts & Upgrades

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ES#3647529 - ST-AIVN-1103SKT - Supertech Stainless Intake 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3647529
Mfg#:
ST-AIVN-1103SKT
Back Ordered
$453.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4465329 - 1.9-BEW - Unitronic Performance Software - Flashed @ ECS - Choose the stage that meets your power goals! - Unitronic - Volkswagen

Choose the stage that meets your power goals! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This tune requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next
For vehicles with BEW engine code only

Brand:
Unitronic - Corporate Logo
ES#:
4465329
Mfg#:
1.9-BEW
In Stock
Starting at $450.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2862849 - CTS18TTRANST3 - 1.8T Turbo Exhaust Manifold - T3 Flange - The perfect manifold for the DIY big turbo kits - CTS - Volkswagen

The perfect manifold for the DIY big turbo kits affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
2862849
Mfg#:
CTS18TTRANST3
Ships in 7 Business Days
$449.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Average gain of 60 horsepower and 115 lb-ft of torque. For engine code ALH (up to 2003) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Requires VNT-17 turbo upgrade, 3.0 bar MAP sensor, upgraded fuel injectors, and upgraded clutch if not equipped with factory Luk clutch. For vehicles fro

Brand:
Tunezilla - Corporate Logo
ES#:
2917825
Mfg#:
VE-TDI-004
Ships in 7 Business Days
$449.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Average gain of 47 horsepower and 95 lb-ft of torque on 93 Octane @ 20 PSI affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Tunezilla - Corporate Logo
ES#:
3097328
Mfg#:
18T-20V-180-1.5
Ships in 7 Business Days
$449.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Average gain of 30 horsepower and 55 lb-ft of torque affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Tunezilla - Corporate Logo
ES#:
2917809
Mfg#:
PD-TDI-001.5
Ships in 7 Business Days
$449.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Average gain of 40 horsepower and 68 lb-ft of torque affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This product is only eligible for Chip & Ship. Not available for drive-in flashing.
Boost gauge or VCDS logging recommended to monitor boost creep

Brand:
Tunezilla - Corporate Logo
ES#:
2917810
Mfg#:
PD-TDI-002
Ships in 7 Business Days
$449.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Average gain of 51 horsepower and 65 lb-ft of torque on 93 Octane @ 18 PSI affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with AWD or AWW engine codes only

Brand:
Tunezilla - Corporate Logo
ES#:
3097322
Mfg#:
18T-20V-150-1.5
Ships in 7 Business Days
$449.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Average gain of 43 horsepower and 34 lb-ft of torque affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Requires VNT-17 turbo upgrade, 3.0 bar MAP sensor, and upgraded fuel injectors. For vehicles from the 2000 model year only. Vehicles older than 2000 requ

Brand:
Tunezilla - Corporate Logo
ES#:
2917826
Mfg#:
VE-TDI-004.5
Ships in 7 Business Days
$449.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Get that Exhaust tone you've been looking for! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles featuring a "non-cutout" rear valance. Hidden (turn down) exhaust tip.

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175733
Mfg#:
253436M-H
Ships on Jul 14, 2026
$446.00 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#3157890 - K898 - Power Stop Z23 Evolution Sport Front Brake Kit (288mm) - A performance front axle upgrade featuring drilled & slotted rotors and low-dust carbon-fiber ceramic pads. - Power Stop - Volkswagen

A performance front axle upgrade featuring drilled & slotted rotors and low-dust carbon-fiber ceramic pads. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Power Stop - Corporate Logo
ES#:
3157890
Mfg#:
K898
Ships in 2 Business Days
$218.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#2748259 - 35255571ECSWBKT -  ECS Wheel Spacer And Bolt Kit - 17.5mm 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 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#:
2748259
Mfg#:
35255571ECSWBKT
In Stock
ON SALE! SAVE 25%
$192.99

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

$144.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3647523 - ST-AEVI-1106SKT - Supertech Inconel Exhaust Valve Kit - +1mm oversized 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

+1mm oversized valve head diameter, single groove keeper setup for high RPM use - Includes Supertech valves, single groove keepers and IE valve seals affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
*Oversized valves require extra machine work to the cylinder head.*

Brand:
Assembled By ECS - Corporate Logo
ES#:
3647523
Mfg#:
ST-AEVI-1106SKT
Back Ordered
$429.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2562275 - 1J5941017BJKT - OE Headlight Set - Without fog lights, with amber turn signal lenses - TYC - Volkswagen

Without fog lights, with amber turn signal lenses affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
TYC - Corporate Logo
ES#:
2562275
Mfg#:
1J5941017BJKT
Back Ordered
$213.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#3427276 - 034-106-7008 - 034Motorsport High-Capacity Billet Fuel Rail  - CNC machined in-house from billet aluminum - includes -6 AN fittings and mounting hardware - 034Motorsport - Audi Volkswagen

CNC machined in-house from billet aluminum - includes -6 AN fittings and mounting hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3427276
Mfg#:
034-106-7008
Ships in 2 Business Days
$211.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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

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