If you have an sct tuner you can turn off the egr valve and see if it passes before you remove the cooler all together. I don't really see how it can fail since the egr valve isn't constantly open but then again I don't have to have mine tested. On a side note if they checked exhaust emissions on your truck our state is stricter on diesel emissions than california. They do a visual and smoke test.They've done the tailpipe on mine the last 2 times. I know how to keep it from throwing a code. I'm wondering if with an EGR delete if it will still pass the tailpipe part of the test??
I will say I know of one 6.0 not saying who's that has no cat, no egr, modified injectors, and turbo and passes emissions with flying colors every time. And yes they do the in the pipe test on the diesels unlike the gassers that just get plugged in.
Opacity test, they aren't even checking the co, co2, or nox. If you don't smoke, you'll pass every time. That reminds me, I need to dial my tuner back before I go test.
also on the 04 engine for the egr delete they just cap and band the port off so visually you really can't tell and no one is going to climb up in there and search hard with a mirror to see that ......also if you are not blowing a ton of black smoke you should pass fine ...
turbo sits the same early or late the only difference being the bolt pattern on the turbo, which also makes the mount a little different but in the end there is no difference in how it sits or what you can see.
The reason for not doing just a simple block off plate is they have been known to fail (personal experience) and can cause the same problem as not being blocked at all. I simply stepped up the pocket book and bought a real delete no more worries.
As far as 10k I've been there and back again but not sure really what that has to do with not spending a little extra to do something right the first time as it's just not that much more.
yha, like any of the monkeys working for dot would have a clue what there looking at.
in Wa, diesels get a snap check for smoke.
if even my old dodge passed, then 99% of every one else's shuld as well..... unless you physicly have some thing wrong...