Just did this now my factory boost gauge does not work. Now to figure out what line was the gauge line.

 

Move the reference line for the boost gauge.

 

So in blocking off the EGR (I plugged the head) What do I need to do with the solenoid? Can I remove it completely or does it need to stay plugged in? Does it sense Vacuum / pressure?
Just want to know what to do with the hardware while the engines out.

 

$25 dollars for 25 whp craziest thing I've ever heard off! would take that anyday of the week!

 

Probably won't net every car 25WHP. This may have been an extreme example.

 

Pull it and put it in a spare parts box in case you need it for emissions.

 

i'm leaving mine. i live in CA and have to pass visual inspection. it doesn't bother me to have it on the car.

i agree with the post above: that number sounds pretty high. so many variables. i did it to keep temps in the IM down, keep things cleaner, etc. i can't imagine the extra heat does any good for any of the sensors on the IM.
i plugged mine at the port in the head with the NPT fitting. we'll see how it goes.

 

no retune ?why not delete then 👌

 

Not all cars are going to have an EGR that leaked as bad as this one. Some may not see big gains, some will. The fact that 1400-1500* air is making its way into the intake manifold thru a leaking EGR, the exhaust is diluting the fresh air, and contaminating the charge, would lead me to believe EVERY car will see a gain.

If its leaking

Also it seems that all of the ones above 85-90k miles that have come in leak to some degree.

 

So, has anyone tapped the EGR hole in the exhaust port for cylinder #4?

Was thinking that I could have my head guy use some aluminum to fill it up (much like a combustion chamber repair). Thoughts?

 

You can tap it and plug it with a pipe plug. I'm sure just welding it up would work fine too..

 

Can I speculate that a similar gain can happen to an Evo X with a leaky EGR? I also need to figure out a way to keep the OBDII free of codes if block the EGR.

 

Answering my own question, the Evo X does not have an EGR actually, because it has the exhaust valve MIVEC system to compensate for it, which is different from the IX. Link: http://www.evoxforums.com/forums/showthread.php?t=75234

 

So I've seen a couple people say you don't need a tune and a couple say you do. If I have a completely stock Evo IX no tune or anything will I still be ok to take off the sensor and put the plate on the IM no problems? New to the platform and still learning before I start modding hardcore. Thanks guys!

 

It will need a tune, otherwise you will get a CEL for the EGR delete.