GTSPEC exhaust manifolds are one of the top performance manifold in the market. All GTSPEC exhaust manifolds are made of stainless steel SUS304 material and with all mandrel bent piping. Best piping size are carefully picked for each application.

GTSPEC not only focuses on piping diameter but also design layout. The goal in designing manifolds are to minimize sharp turns to improve exhaust flow and minimize exhaust resistance and improve high RPM performance.

In some of our applications, new lost wax flanges are utilized to prevent warping and leaking issues.