ECS Performance Sale - VW MK4 GLI/337/20th
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.
Stock Up
Fits:
VW MK4 Jetta GLI 1.8T (2004 - 2005)
VW 337/20th (2002 - 2003)
2.0T Coil Pack Conversion Kit - Stage 2
Includes wrinkle black conversion plate -w- red 2.0T coils and black hold down kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2713418
Mfg#:
002598ECS02AKT
Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.
Availability:
Ships on Nov 25, 2026
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Ships on Nov 25, 2026
2.0T Coil Pack Conversion Kit - Stage 2
Includes wrinkle black conversion plate -w- red 2.0T coils and red hold down kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2713422
Mfg#:
002598ECS03AKT
2.0T Coil Pack Conversion Kit - Stage 2
Includes anodized black conversion plate -w- red 2.0T coils and black hold down kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2713435
Mfg#:
002598ECS10AKT
Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.
Availability:
Ships on Nov 25, 2026
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Ships on Nov 25, 2026
2.0T Coil Pack Conversion Kit - Stage 2
Includes anodized black conversion plate -w- red 2.0T coils and red hold down kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2713436
Mfg#:
002598ECS11AKT
2.0T Coil Pack Conversion Kit - Stage 2
Includes wrinkle black conversion plate -w- black 2.0T coils and black hold down kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2713427
Mfg#:
002598ECS06AKT
Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.
Availability:
Ships on Nov 25, 2026
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Ships on Nov 25, 2026
ECS Lightweight Crank Pulley - Black - (NO LONGER AVAILABLE)
Release hidden power from your drive belt system
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2952057
Mfg#:
003533ECS01
No longer available
ECS Lightweight Power Steering Pulley - Black
Release hidden power from your drive belt system
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2649863
Mfg#:
003533ECS02A
No longer available
Lightweight Underdrive Pulley Set - Black Anodized
Includes a new alternator, power steering and crank pulley that allows you to use a stock belt.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
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.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
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 - Black - (NO LONGER AVAILABLE)
Reduce chassis flexing, comes complete with stainless steel hardware
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
5435
Mfg#:
ECSMK4SBK-BLK-A
No longer available
Strut Tower Brace - Blue - (NO LONGER AVAILABLE)
Reduce chassis flexing, comes complete with stainless steel hardware
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
5438
Mfg#:
ECSMK4SBK-BLUE-A
No longer available
This product has been superseded to
ES#5339542
Strut Tower Brace - Polished Aluminum - (NO LONGER AVAILABLE)
Reduce chassis flexing, comes complete with stainless steel hardware
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
5439
Mfg#:
ECSMK4SBK-PLS-A
No longer available
This product has been superseded to
ES#5339542
Strut Tower Brace - Red - (NO LONGER AVAILABLE)
Reduce chassis flexing, comes complete with stainless steel hardware
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
5437
Mfg#:
ECSMK4SBK-RED-A
No longer available