This complete silicone hose kit is designed to replace all of the crumbling plastic and rubber awfulness that is the factory breather hose system.

Fits 2004-2005 B6 Audi A4 1.8T models with the AMB engine code with VIN 8E-3-500000 and up. Includes all hardware needed to retrofit to a much simpler and more reliable breather system design.

Replaces the following factory parts:

• Valve Cover Breather Hose - (06B 103 221L)
• Check Valve to Intake Manifold Hose - (06B 103 224E)
• Block Breather Tube - (06A 103 213AM)
• Valve Cover Breather Tube - (06B 103 213AK)
• PCV Valve  (06A 103 245F) (Upgraded to the 034Motorsport Billet PCV Valve.)

Features a billet aluminum block breather adapter with an o-ring seal that utilizes the factory retaining clip, and cap/plug to eliminate/bypass the auxiliary check valve hose.