The Tomei Equal Length Exhaust Manifold was designed to get optimal performance gains for your 2004-2015 STI/2008-2014 WRX. These headers are an equal length, 4-2-1 designed to flow exhaust gases more efficiently through the power band.
Designed with quality at the highest priority, these manifolds are made using 2.5mm SUS304 stainless steel to give you a lifetime of performance. The header will come provided with hardware, gaskets, metal zip ties, uppipe, and heat wrap to make for a ready and complete installation.
If you decided to go with a different up-pipe you will need to purchase a 3-bolt up-pipe.