The Akrapovic Racing Line Exhaust A36005901044 features an optimally-adapted intake manifold routing that brings out the best of the stock engine. Constructed from premium-grade titanium for the silencer housing and stainless steel for the header, it meets FIM and AMA noise regulations while producing a richer sound. By improving the power delivery and throttle control, it allows the driver to access a wider speed range, increasing handling and torque for improved performance. Manifold routing optimally adapted to the production engine Silencer housing made of high-grade titanium Complies with current FIM noise regulations Complies with current AMA noise regulations Stainless-steel header More usable speed range Better power delivery Improved handling overall due to finer dosing capacity on the throttle grip Sensitive response Rich sound Increased tightening torque Increased performance Fits This system will fit on the following KTM motorcycle models: 250 EXC-F 2024-2026 250 EXC-F Champion Edition 2025 250 EXC-F Six Days 2024-2026 350 EXC-F 2024-2026 350 EXC-F Champion Edition 2025 350 EXC-F Six Days 2024-2026 350 EXC-F US 2026 350 XW-F 2024