I had mine on replaced on 2002 320 at Grand Marina in Alameda in July 2011. Labor/Mechanic 1.91 Replace exhaust mixing elbow 110.00 $210.10 Material 1 Mixing elbow (PN #104214-13521) 152.90 $152.90T Material 1 Gasket for mixing elbow (PN #128370-13201) 7.21 $ 7.21T Dan Nichols #876