OE-quality turbo mounting bolt, ensuring proper retention of the K03/K04 turbo on the exhaust manifold, 1.8T longitudinal engine.

Turbo bracket, bolting onto the turbine flange studs to support the weight of the turbocharger. Stainless steel construction, precision laser cut. Fits Garrett T3, GT and KKK turbos.

Turbo bolt lock tab, preventing the mounting bolts from loosening on the K03/K04 exhaust manifold. Installs under the bolts, bent over the head for simple locking.

Block-side oil drain flange for oil pan return, CNC-machined billet aluminum, with integrated -10 AN male fitting, Audi 1.8T engine.

New OE “710N” blow-off valve (bypass valve), with reinforced rubber diaphragm for a longer service life than other plastic valves. The best OE plastic valve ever produced.

Billet blow-off valve with raw aluminum finish, replacing the original plastic valve, a frequent source of boost leaks. High-performance spring and piston design for longer service life and greater boost resistance.

Billet blow-off valve, black finish, replacing the original plastic valve, a common source of boost leaks. High-performance spring and piston design, unlike the original fragile rubber diaphragm, for increased service life and boost resistance.

-3AN fittings for plastic slave cylinders, recent Audi/VW applications.

Drain flange for oil pan return on the engine block side, CNC-machined billet aluminum, 1/2" NPT thread, Audi 1.8T engine.