Autobahn Autoworx Volkswagen MK4 Golf Jetta Beetle GTI GLI 1.8T 1999-2005 / Audi TT MK1 1.8T 2000-2006 Turbo Inlet Pipe

Part Number: AUT-MK4-001

Upgrade your factory intake system with the Autobahn Autoworx Turbo Inlet Pipe for Volkswagen and Audi 1.8T applications equipped with K03 or K03S turbochargers. This reinforced silicone inlet pipe replaces the restrictive and aging factory hose, providing improved airflow, durability, and reliability.

Designed with a 43mm turbo-side connection and stock MAF-side fitment, this inlet pipe is a direct replacement for OEM configurations while offering superior resistance to heat, oil vapors, and engine bay contaminants.

Vehicle Fitment

1999-2005 Volkswagen Golf GTI 1.8T K03/K03S
1999-2005 Volkswagen Jetta 1.8T K03/K03S
2002-2005 Volkswagen Jetta GLI 1.8T K03S
1998-2010 Volkswagen New Beetle 1.8T K03/K03S
2000-2006 Audi TT MK1 1.8T 180HP K03/K03S

Specifications

Turbo Side Connection: 43mm
MAF Side: Factory OEM Size
PCV Port Size:
- 19mm PCV (up to 2001)
- 22mm PCV (2002 and newer)

Features

Direct replacement turbo inlet pipe
High-quality 4-ply reinforced silicone construction
Improved airflow compared to factory inlet hose
Compatible with K03 and K03S turbochargers
Resistant to heat, oil vapors, and boost-related stress
OEM-style fitment for easy installation
Ideal for stock and modified 1.8T applications

Benefits

Improved turbocharger airflow
Increased reliability over factory rubber hoses
Reduced chance of cracking and collapse under load
Cleaner engine bay appearance
Longer service life than OEM components

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.