Mine were $2200 - plural bc there are 2, even on the 3.0. My mechanic said they typically use a Magnaflow aftermarket, but with the 3.0 the cats are right off the manifolds so it is difficult to use an aftermarket solution. I think you could use the MFs with the 4.4's.

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2001 X5 3.0i (PP/WP/AP) Traded at 213K miles
RARE White on Black - Why does everyone get Tan??
First E53 with 215s on XOutpost!!