Exhaust trim, 18T engine SAi deactivation, billet aluminum exhaust accessory, fits Mk4 TT B5 B6

Suitable for: Audi models with combined valve train, model years 1998–2006, all 1.8T engines, suitable for Mk4 TT B5 B6

High-quality material: CNC machined from aluminum, including O-ring for sealing, locking washers, and screws.

Professional construction: This SAI (Secondary Air Injection) blanking plate sits on the 1.8T cylinder head after the system has been removed. It creates space around and behind the engine block by eliminating a vacuum-sealed tangle of hoses.

Easy installation: The starter relay is easy to install and simply plugs into the cylinder head, offering you great convenience.