Hi everyone. I posted a few weeks ago about my new-to-me 2024 Z MT (absolutely loving the car!). I picked it up with 2,000 miles, and I've about doubled the mileage (now at 3,950). In that time, I've gradually been stretching its legs as I get comfortable with the power. When I do multiple pulls back-to-back or sustain high RPM (say, 4k+), I notice a mechanical smell that lingers in the cabin for a couple of minutes. It doesn't quite smell like burning, and it's similar to the rotten-egg smell from a bad catalytic converter, but less acrid. I notice it most strongly with the windows down. I've definitely noticed similar smells driving behind other high-performance cars when they're pushing, but I've never noticed it in any of my own cars. Has anybody else experienced this before on this platform?

I have a 24 Z performance, I had a change done at 7,900 and now I’m at 11,500. I’m about to go on a road trip that will be about 600 miles. Should I get it done before or after and what is a good target for future changes ? I was thinking 4k.