The JRspec cast iron collector is designed for 1.8T 20V engines in VAG vehicles, featuring a T25 turbo flange. Constructed from high-quality cast iron with enlarged channels, it ensures improved exhaust gas flow. The collectors are annealed to prevent cracking and come with pre-arranged flanges for immediate installation.

Please note that longer mounting pins are required for the exhaust manifold and are not included in the set.