Does anyone know if the 528i e39 also came with the scuba tank muffler? I just purchased what i thought was a 540i stock muffler for my 97 540i and cut my muffler delete pipe off right even with the differential cover area. Went to compare the size of the pipe coming out of the muffler to the pipe coming out of the Y res that i cut and the muffler pipe is only 2.5 inches while the pipe coming out of the Y res on my car is 2.75 inches! wth. Done this job before and have never seen anything like this. I did this job on another 540i once and i used a 2 3/4 inch coupler and 2 clamps before and joined both pipes togethre and it fit perfectly if i recall. Anyone know if this might be a 528i scuba tank muffler?
Electric Fan conversion, 840Ci thermostat, Dinan style CAI,de-screened MAF, Dinan transmission chip, 255lph LS1 fuel pump, drilled slotted rotors, 3.15 differential, Bel rx65 radar (hard-wired). Hemi Killer!
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