My EK9 has 118,000 km on it and i swear down its getting faster.
Gets oil changed every so often (less than every 3k,Friend is a honda mechanic)
To be fair its getting a bit rattly and knocky but i have stripped it out, braced the **** out of it and added a roll cage so i cant really expect maximum comfort...haha and its pretty much track ready, would be boring if it was quiet