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Volkswagen MK4 Performance Engine Parts

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HKS SS BOV Insert - Purple

ES#1572 - 1422-SA001 - HKS SS BOV Insert - Purple - Creates a "Whoosh" noise instead of a whistle. Simple install on all HKS BOV's - HKS - Audi Volkswagen

Creates a "Whoosh" noise instead of a whistle. Simple install on all HKS BOV's

Brand:
HKS - Corporate Logo
ES#:
1572
Mfg#:
1422-SA001
In Stock at Vendor
$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Self-Locking Nut - Priced Each

ES#467648 - N10209009 - Self-Locking Nut - Priced Each - Install new hardware with your new parts. M10 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M10

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467648
Mfg#:
N10209009
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hobb's Switch

ES#3520735 - ACC-HOBBS - Hobb's Switch - 15 PSI - Fuel-It! - Audi BMW Volkswagen MINI Porsche

15 PSI

Brand:
Fuel-It! - Corporate Logo
ES#:
3520735
Mfg#:
ACC-HOBBS
Ships on Aug 14, 2026
$55.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Port Injection Plugs

ES#4690214 - PRINJPLGS - Port Injection Plugs - Use these in replacement of any standard short body EV14 style injector. - Precision Raceworks - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Use these in replacement of any standard short body EV14 style injector.

Brand:
Precision Raceworks - Corporate Logo
ES#:
4690214
Mfg#:
PRINJPLGS
Ships in 9 Business Days
Starting at $9.99 USD
Customize
Free Shipping
on orders $49 and up

Autobahn Autoworx

May require modification to fit correctly on MK4 Golf/Jetta/Beetle. Requires 225 TT PCV Factory engine cover will not fit with the use of this inlet hose.

Brand:
Autobahn Autoworx - Corporate Logo
ES#:
4883585
Mfg#:
AUT-MK4-002
Special Order: No Guaranteed ETA
$100.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Diverter Valve - Black

ES#2917783 - DV20 - Diverter Valve - Black - Keep your turbo boosting like it should - Euro Sport Acc - Audi Volkswagen

Keep your turbo boosting like it should

Brand:
Euro Sport Acc - Corporate Logo
ES#:
2917783
Mfg#:
DV20
Ships in 3 Business Days
$99.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

PD TDI Feature Standalone Tune

ES#2917817 - PD-TDI-STL - PD TDI Feature Standalone Tune - Standalone tune for Dynamic Idle, Idle RPM change, Left-foot-brake fix, Glow plug duration increase, P0128 fix, Cruise Control fix or all the above - Tunezilla - Volkswagen

Standalone tune for Dynamic Idle, Idle RPM change, Left-foot-brake fix, Glow plug duration increase, P0128 fix, Cruise Control fix or all the above Only to be purchased individually

Brand:
Tunezilla - Corporate Logo
ES#:
2917817
Mfg#:
PD-TDI-STL
Ships in 7 Business Days
$99.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

VE TDI Feature Standalone Tune

Standalone tune for Dynamic Idle, Idle RPM change, Left-foot-brake fix, Glow plug duration increase, Hot-start fix, or all the above Only to be purchased individually. For vehicles from the 2000 model year only. Vehicles older than 2000 require ECU removal and physical chip swapping an

Brand:
Tunezilla - Corporate Logo
ES#:
2917830
Mfg#:
VE-TDI-STL
Ships in 7 Business Days
$99.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Air Filter

ES#3195200 - FB159/01 - Performance Air Filter - Lifetime high-flow air filter that's a direct replacement - BMC - Audi Volkswagen

Lifetime high-flow air filter that's a direct replacement

Brand:
BMC - Corporate Logo
ES#:
3195200
Mfg#:
FB159/01
Back Ordered
$99.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water/Methanol Injection Hose - 20'

ES#4715254 - BMS-WMI-IL - Water/Methanol Injection Hose - 20' - Replacement WMI Water Injection Hose - Burger Motorsports - Audi BMW Volkswagen MINI

Replacement WMI Water Injection Hose

Brand:
Burger Motorsports - Corporate Logo
ES#:
4715254
Mfg#:
BMS-WMI-IL
In Stock
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

FP34 Surge Tank Hardware Kit - Nipple Connections

ES#3419781 - 034-106-Z024 - FP34 Surge Tank Hardware Kit - Nipple Connections - Allows for connections to factory style nipple connections for 5/16" or 8mm hose - 034Motorsport - Audi Volkswagen

Allows for connections to factory style nipple connections for 5/16" or 8mm hose

Brand:
034Motorsport - Corporate Logo
ES#:
3419781
Mfg#:
034-106-Z024
Ships in 2 Business Days
$91.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal Performance Air Filter

ES#2863067 - RR-3003 - Universal Performance Air Filter - Inverted filter with 3.0" inlet - K&N - Volkswagen

Inverted filter with 3.0" inlet

Brand:
K&N - Corporate Logo
ES#:
2863067
Mfg#:
RR-3003
Ships in 4 Business Days
$90.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

No-Toil Foam Filter Oil

ES#3546630 - nt0-aerosolKT - No-Toil Foam Filter Oil - For use with ITG foam filters - No T-oil - Audi BMW Volkswagen Mercedes Benz MINI Porsche

For use with ITG foam filters

Brand:
No T-oil
ES#:
3546630
Mfg#:
NT0-AEROSOLKT
In Stock
$17.00

This product was last offered at the strikethrough price on
05-27-2026

$16.99 USD
Free Shipping
on orders $49 and up

VW-Audi 7mm Exhaust Valve stem seal / Viton (SET OF 6)

ES#4736132 - VS-VW7E-6 - VW-Audi 7mm Exhaust Valve stem seal / Viton (SET OF 6) - The perfect seal for repairing, replacing, or upgrading your valves and stem seals! - Supertech - BMW Volkswagen

The perfect seal for repairing, replacing, or upgrading your valves and stem seals!

Brand:
Supertech - Corporate Logo
ES#:
4736132
Mfg#:
VS-VW7E-6
Ships in 5 Business Days
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine Parts

Our name says it all. That's why ECS Tuning is dedicated to providing our customers with the broadest possible assortment of engine tuning options at a range of prices and options to fit any budget. Start small and grow your car into something special with performance engine upgrades from a company that has tuning in its name and its blood.

Let us help you find the parts that fit your Volkswagen

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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