MSDS has a high output exhaust for Skyactiv engines. https://www.msdsinc.com/ho334.html

What to expect if you do want to swap in these headers with a ceramic coating (same effect to using a titanium wrap to keep heat in for faster flowing exhaust). But first ... you need to know that the oem headers on your skyactiv engine are designed to maximize low end torque. The MSDS headers will increase your highend HP. They will also make your exhaust note higher & deeper. They will eliminate your 1st Catalytic converter (do you want that? ..but you install that 1st cat at the mid pipe and make it a high flow cat). You will also lose low end torque ( can be gotten back with a lighter flywheel and stage 1+ clutch , most not all). Oh ya , will trigger a check engine light which means you would also need a tune to maximize hp and have have that code eliminated. Has anyone installed new headers on the their Skyactiv engines ?