Yeah, I was gonna say the MSP exhaust is a good mod! I'm planning on it in the next few months too. As for my header, I don't know what brand mine is honestly. There's no marking on it and the PO didn't know what brand it was either. I was planning on getting https://www.amazon.com (commissions earned) until I saw the header that I got, but there are cheaper ones on Amazon and eBay like https://www.amazon.com (commissions earned), which coincidentally looks a lot like mine (maybe that's it?). You're gonna want to do the non-fouler O2 sensor trick since you're removing your primary cat.
Just stuff to keep in mind.
Just stuff to keep in mind.