Integrated Engineering Phenolic Large Port to Small Port Adapter Kit | MK4 GTI · Jetta · GLI · MK1 Beetle · B5 Passat · A4 · B6 A4 · MK1 TT | 1.8L Turbo I4 B9 S4 3.0L Turbo V6 an extensive iterative process lead

an extensive iterative process lead to the unique Egg shape of our rod beams

The Spherical Upper Strut Mount is made from the highest grade materials

Perfect for customers looking for a jump in power without adding any additional hardware

Excellent wear resistance

Spacers and Shims

Integrated Engineering Phenolic Large Port to Small Port Adapter Kit | MK4 GTI · Jetta · GLI · MK1 Beetle · B5 Passat · A4 · B6 A4 · MK1 TT | 1.8L Turbo I4 B9 S4 3.0L Turbo V6 an extensive iterative process leadIE's phenolic transition spacer for your 1. 8T engine delivers a smooth transition when installing a large port intake manifold to a small port cylinder head. The 12. 5mm heat resistant material also acts as a phenolic spacer greatly reducing intake air temperatures increasing power. Includes all new extended hardware and two new intake manifold gaskets. Features: Smooth transition between manifold and cylinder head port sizes Decreases intake