Pull the manifold, don't screw around with socket extensions ect. It will take you longer then if you just did the job right.

You will need the manifold to head gasket, because it will surly be almost gone. You should also get the intake to crossover gasket along with the large green oring that seals the crossover by where the egr dumps in. However you can do that at a later date the crossover is only held on by three bolts and pops right off. The manifold is pretty easy to pull you will need to remove a few injector lines and brackets but thats about it. If your egr is still working the manifold will be full of tar.

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2006 CL500
2009 C300 4matic
1969 280SE
2023 Ram 1500
2007 Tiara 3200