When I pulled the M52 I pulled the manifold off because I thought it was going to be a head job, but then decided to pull the whole thing out. I dropped the S52 in complete, connecting the heater hoses wasn't exactly fun but it was doable, especially if you planned it out before you put the motor in (which side to leave the hose attached to).
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S52|ZF|TRM Coilovers 670/895|Staggered 18" 5's
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