The Subaru BRZ / Scion FRS / Toyota FT86 4-2-1 exhaust manifold is constructed from quality steel and built to push the performance of your FA20 engine. Tomioka Racing exhaust manifold offers 40% weight reduction compared to factory exhaust manifold. To top it off, each exhaust manifold is hot jet coated to provide exceptional heat management. Among its benefits, hot jet coating provides protection from corrosion, improves thermal efficiency of the engine and maintains uniform temperature in the exhaust system. The exhaust manifold is 100% bolt-on and includes all the gaskets to provide exceptional seal from exhaust gas leaks.