View Full Version : 96+ OBD2 E36 M3 midpipes/midsection/cats

07-23-2007, 01:39 AM
They have extremely low mileage - I bought them with only ~20000km (or 12000mi; it was a US car) to put in my 325is. OBDI cars have a restrictive midsection (there's a "Y" choke point) whereas this one is twin-tubed all the way through, so it flows much better.

This is also a huge upgrade for 318/320/323's which have even an even more restrictive single tube all the way from before the cats back - this midsection combined with a dual-inlet muffler (i.e. one from an M3, which are cheap these days) will free up a significant amount of hp. It's dyno-proven, just look it up in bimmerforums.

Unfortunately I never got around to installing it, and since I'm probably trading in for a 328is, I wouldn't be needing this anymore. Due to the low mileage, I'd like $200 OBO for it.

07-23-2007, 06:21 AM
This is also great for 328/M3 owners just looking to replace their cats. The M3 and 328 have the same midsection.

07-23-2007, 07:04 AM
^^ what are the torque/hp gain for say a m50 obd1 engine with cast ex. manifold and one with a m52 tubular ex. manifold?

07-25-2007, 03:59 AM
Might be intrested in that mid section. I have a odb1 92 325is you say it fits properly?