The SBK Factory Evo II exhaust systems are Leo Vince's top of the line exhausts. They're constructed with a TIG-welded stainless steel mid-pipe (or full header) that connects to an all-titanium or carbon can with a carbon fiber end cap and mounting strap. It's all built in-house to ensure absolute quality control, meaning nothing's farmed out to subcontractors. Additionally, Leo Vince exhausts are tuned to work best with stock fuel settings.