I have Gen 3 VCM paired with the H6 in the MDX. It is short tripped, I do have a muzzler that I deactivate for the fuel economy benefits on longer highway runs, which are seldom. 95% of its use is in town, muzzled. No issues to date with 87K on the odo. I live on an interstate and therefore don't ever really do "highway" driving...so when I disable the muzzler I'm going 80mph or so which makes me wonder if it's even capable of maintaining that speed with one bank shut down. Add in the fact that having a 20+mph headwind is common and I'm thinking there is no way.