**This is only for the muffler section of the exhaust you must re-use your existing tips**
 
This boost activated valve option features valves that remain closed under 7psi of boost which will keep your GTR quiet while cruising and idling. Once you exceed 7psi of boost, the valves open to provide the maximum airflow possible, allowing your engine to produce the most power possible. This system flows as much as their standard race proven titanium exhaust system. Boost Logic has designed this upgrade in such a way to prevent any excess back pressure or power loss while the valves are closed.