That's not how it works, the overspeed code is a permanent DTC in the ECU. It doesn't need a mileage stamp. If the warranty wasn't void they would have covered the rod bearings.
Thank you for the post. The only reason I am considering the RT615k+ is for the price. Up here in Canada the RT615k+ 265/35/18 can be had for $300 / tire, while the ExtremeContact Force 275/35/18 is $564 a tire. V730 are $310 a tire. Hankcook RS4's are ~$390
My final-ish setup
Front brakes: EBC RPX + titanium shims
Rear Brake: OEM FK8 pads
Fluid: Castrol SRF
Trakl
Wheels: 18x9.5 Motegi MR145 traklite +45
Tires, looking like I will buy a set of 265/35/18 Falken Azenis RT615k+. Slower than the RS4 and the V730, but will wear like iron and be able to...
I would say if it holds compression and leakdown you are fine. Worst case when you get an oil change, carefully cut open the filter and see if it captured any metal sparkles.
I don't mean to be rude but it sounds like you just want us to confirm it's all fine, but we can't. The car overev'd and stored a code. Get it inspected and compression/leakdown tested.
It's the only way to know for sure.
They CTR did not receive any updates similar to other 2025 Civics, including the infotainment, type c ports, or improved Honda sensing. It's still running the old infotainment. Likely because it is being built in the Japanese plant and has the LogR app.