no more EGR ??

[Tobert]

For one thing, your check engine light will always be on, so it won't be able to alert you to any new problems that may arise.

There is also the potential that not having EGR for a long period of time could put your engine outside of the operating parameters it was designed for. This could be something as simple as running lean on the freeway for a couple hours and burning a valve. It could do nothing. For this engine, which was designed with EGR in mind, I would leave it on there. That's coming from a guy who is also in a non-emissions state and have run vehicles without catalytic converters or emissions pumps.

[mbeach]

I'd have to check to be sure, but the addition of the exhaust gas to the intake tract also helps to keep cylinder temperatures lower. This could be a matter of keeping the miture from becoming too lean, or it could be something else.

I say keep your nuts tight and leave the EGR valve in place.

[Joe_Black]

I would be hesitant to remove it because, as mentioned above, our engine was deveolped to have an EGR system from the outset rather than added on to meet some Federal mandate. Even in other nations with different emission requirements the 6VE1 still has the EGR system, which IIRC complements the variable-length intake runner design.

Of course we're always interested in the results if you're willing to become the guinea pig.