Any ideas on whether this will fit a F54 or F60 S ALL4?

Twisted Steel Mid Pipe 2-1/2 IN 304 Stainless Steel | aFe POWER

Says F55/F56/F57 fit. On Real OEM, F54 and F60 use a different midpipe section, but wondering if there's a unique shape, or if it's just longer to accommodate the longer chassis.

Looking for an OEM+ type option. Thinking this piece plus a factory JCW or BMW X2 rear muffler with the flap pinned open?

Anyone else attempted anything similar?

Closest aftermarket specifically for F60 ALL4 would be NM of course.

 

I'm no exhaust expert, but a decent local muffler shop should be able to fab something for you. Combining a resonator with a bit of pipe shouldn't be too tricky. I added a magnaflow resonator to my R60 in place of the 2nd cat when I did my exhaust years ago.