We offer Ti6Al4V titanium alloy and Inconel 718 exhaust studs.
Our titanium studs are made from heat-treated Ti6Al4V alloy, which is much stronger than mild steel employed by stock exhaust studs, but 45% lighter. They are also impervious to corrosion and heat resistant; hence they will not rust and look like new indefinitely, and will be easily removed from the cylinder head when needed without breaking, a common issue with the stock studs.
Click here for additional information regarding the properties of Ti6Al4V titanium alloy, and see how it compares to other metals.
Our Inconel studs are made from Inconel 718, a gamma double prime heat-strengthened Inconel Alloy, a family of austenitic nickel-chromium-based superalloys. Inconel 718 is an oxidation-corrosion resistant material with excellent tensile, fatigue and creep-rupture strengths. It is well suited for operations in extreme environments subjected to pressure and heat. Inconel retains strength over a huge temperature range, attractive for very high temperature applications where steel would succumb to creep as a result of thermally induced crystal vacancies. Under extreme use, the steel/stainless-steel studs can expand enough to loosen off and eventually break; which might be especially true in racing or high-performance street applications, and turbocharged engines such as in the GT2, GT2RS, GT3, and GT3RS Porsche 911s.
Click here for additional information regarding the properties of Inconel 718, and see how it compares to other metals.