FD T4 Split Pulse Exhaust Manifold

The ARTEC Performance Mazda 13B FD T4 Exhaust Manifold is precision engineered for high-performance applications. Constructed from investment cast SUS347 stainless steel, this manifold is designed for durability and optimal exhaust flow. Its unique split pulse design features runner separation that extends all the way to just before the wastegate valve face, a complex manufacturing feat that enhances exhaust scavenging. This manifold is specifically designed to accommodate a variety of turbochargers, including the Garrett G40-1150, and is also compatible with the Turbosmart 6466. It features a standard single 50mm wastegate flange for straightforward boost control, but also includes a cut line to allow for custom fabrication to fit up to a 60mm wastegate if desired. The M10x1.25P stud thread ensures a secure fitment for your turbo setup. Designed and tested in Australia, this exhaust manifold is backed by a lifetime warranty. The cast stainless steel construction maximizes flow efficiency through smooth merging angles and eliminates restrictions common with tight-radius bends. This results in a more optimized manifold with consistent performance, improved heat dispersion, and resistance to heat pooling and cracking, all while presenting a smooth exterior finish.