VW MK4 337/20th/Jetta GLI ECS Performance Sale
Why settle for stock?
ECS Popular Upgrades are a special blend of drivetrain and braking upgrades designed to pick up where the factory left off.
Each is designed to fine tune or enhance the performance and appearance of your VW; most ship free for a limited time.
Pick one as a weekend project. Call a pal and bolt one on.
Perform.
Fits:
VW MK4 Jetta GLI 1.8T (2004 - 2005)
VW 337/20th (2002 - 2003)
Lightweight Underdrive Pulley Set - Black Anodized
Includes a new alternator, power steering and crank pulley that allows you to use a stock belt.
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Vehicles with clutched alternator pulley require hardware kit - ES271279 for installation
Vehicles with clutched alternator pulley require hardware kit - ES271279 for installation
Brand:
ES#:
420
Mfg#:
MK44CPK
Lightweight Underdrive Pulley Set - Red Anodized
Includes a new alternator, power steering and crank pulley that allows you to use a stock belt.
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Vehicles with clutched alternator pulley require hardware kit - ES271279 for installation
Vehicles with clutched alternator pulley require hardware kit - ES271279 for installation
Brand:
ES#:
3985
Mfg#:
MK44CPK-RED
Strut Tower Brace - Polished Aluminum
Increase torsional rigidity by reducing strut tower deflection.
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
5339542
Mfg#:
053944LA01-03KT