shwert

alright, very helpful guys, thanks again. these lines have to be plugged right?

Tim99GT

yea in a way you could say that. I havnt done mine yet, but there are certain lines that you can delete all together such as the line going to the top of the EGR. You wont need it anymore if you done have a EGR so you can cut it where it splits from the main line and cap or plug it. I know sxynerd had done his. Maybe he will chime in and let you know what lines you can eliminate altogether and what lines you will need to keep.
I warn you though. Those EGR lines are $$$$. If you plan to put the EGR back for some reaseon and you had cut them, it will cost you ~ $120 for a new set i believe. but if ur like me and will never put the damn thing back on, cut em and clean the engine bay up

shwert

sounds like a good enough idea to me, i routed it back to the TB and may find a way to plug it straight off of there, that would make it pretty clean looking

cliffyk

EGR reduces NOx (Oxides of Nitrogen) emissions by reducing combustion chamber temperatures at certain loads and throttle settings--it does this because the exhaust gas has already been burned.

A side effect (actually an advantage) of this is that the cooler combustions temps allow more spark advance and improve fuel economy a bit--EGR is maybe the only emissions related system that is not the devil in disguise...

Tim99GT

^^ Hmm. I could have swore the artical i read had said that it helped burn the unburnt fuel that was left in the exhaust after the combustion cycle... but then again it was artical on the net so who knows.
OP: i would go with cliffy's comment on the EGR function as this man is never wrong.

So cliffy.. You say the EGR's function is to cool the combustion chamber correct. So i am assumming that this takes place post-ignition. If not i dont see how placing hot exhaust gas into the CC pre-ignition can be better than the cooler air it normally sucks in. Got a link? or care to explain?

cliffyk

Exhaust gas is inert, and doesn't burn again, so it lowers the overall combustion temperature.

Here's good article explaining it all. It's from the darkside of the force (3rd gen Camaros), but it applies to our cars as well.

The whole thing is somewhat counter-intuitive, however it is nonetheless the way it is...

Tim99GT

Thanks Cliffy!!!