>>Not to mention things like lipped cylinders and so on.
Didn't stop me from revving the old Kia Pride to 7K and above and using it on and off road for six years. I couldn't imagine the previous owner ever doing that. The only damage it suffered was a dented door sill when I parked it on a tree root and a broken diff through over exuberance and thinking it was unbreakable.
I know that's only a sample of one.
I would have thought the modest increase in power obtained from blocking the EGR and mapping the ECU to recognise that would be less than the loss from 150K miles of use.
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