I'm working on swapping my stock up pipe for a non-emission LB7 up pipe on my 2011 LML. Downpipe is out already. Got all 3 of the up pipe bolts off at the manifold, and 2 of the 3 at the turbo. The 3rd one is behind the coolant pipe that goes from the EGR cooler (I think) to the trans bellhousing adapter on the back of the engine. Any tips to getting this one? There's not enough room to get a socket wrench on it. I can get a box end wrench on it but then there's not enough room to actually turn it. Does the coolant pipe need to come out? How have you guys done it?
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