EGR and Smog Legal

[Dan Thompson]

Jon Davis wrote:

> EGR doesn't hurt performance, not even after 155k miles. It does help
> emissions, whether it looks dirty or not.

Not to mention the fact that it allows the engine to run better at part
throttle (when the system is functioning properly).  The EGR system
reduces combustion chamber temperatures, allowing more timing advance,
and it reduces pumping losses in the engine, which leads to better fuel
economy.

Dan