Upgrade your turbocharged 1.8T with the Autobahn Autoworx Boost Hose Kit. Designed for K03 and K03S-equipped Volkswagen MK4 applications, this kit replaces aging factory rubber boost hoses that are prone to cracking, swelling, and boost leaks over time.
Constructed from high-quality 4-ply reinforced silicone, these hoses are engineered to withstand elevated boost pressures and engine bay temperatures while maintaining consistent airflow and turbocharger performance.
Vehicle Fitment
1999-2005 Volkswagen Golf GTI 1.8T K03/K03S
1999-2005 Volkswagen Jetta 1.8T K03/K03S
1999-2005 Volkswagen Jetta GLI 1.8T K03/K03S
1998-2010 Volkswagen New Beetle 1.8T K03/K03S
Features
Complete boost hose replacement kit
Designed for K03 and K03S turbocharger applications
High-quality 4-ply reinforced silicone construction
Resistant to heat, oil vapors, and boost pressure
Replaces failure-prone factory rubber hoses
OEM-style fitment for straightforward installation
Ideal for stock and performance applications
Benefits
Reduces boost leaks and pressure loss
Improved throttle response and turbo efficiency
Increased reliability under higher boost levels
Longer service life than factory rubber hoses
Cleaner and more durable engine bay appearance
Autobahn Autoworx Quality
Autobahn Autoworx hose kits come with a 5-Year Warranty. Coolant hoses are all 3-ply reinforced silicone, while boost hoses, breather hoses, ISV hoses, and intake/inlet hoses are constructed from 4-ply reinforced silicone for maximum durability and performance.
