09-03-2013, 10:40 AM
I've been trying to figure out the difference between the midpipes, the OBD-I has two different diameter pipes, one is 2" and one is 1.75", and the headers are sized to match. The headers should fit 95-99 cars, but looking at pictures of the OBD-II headers, the appear to be the same diameter, so I'm not sure how that will work out when I go to put flanges on them. I took another look at the headers and the outside one narrows down a few inches before it ends, so if the OBD-II midpipe turns out to have equal diameter pipes, I guess I can just hack off where it gets narrow and install the flange a bit further up on that side.
I also figured out the crap with my driveshaft, there are two completely different styles that seemed to be installed in the cars at random, I thought it was another '95 MY difference but other people with 96-99s had this style too. The Bentley, Haynes and Pelican tech articles don't even acknowledge the existence of this style. Most of the cars seem to use a large retainer nut that you clamp onto with a plumbers wrench and unscrew the front of the driveshaft. Mine had a nut hidden in the u-joint behind the CSB that needs to be loosened with an 18mm box wrench.
![[Image: SamPOEwh.jpg]](http://i.imgur.com/SamPOEwh.jpg)
Victory!
![[Image: I91cowah.jpg]](http://i.imgur.com/I91cowah.jpg)
...yeah, I think it was time to replace this...
![[Image: hI78RGoh.jpg]](http://i.imgur.com/hI78RGoh.jpg)
Now I just need to get a gear puller to remove the old CSB and wait until I can order parts to start putting her back together.
I also figured out the crap with my driveshaft, there are two completely different styles that seemed to be installed in the cars at random, I thought it was another '95 MY difference but other people with 96-99s had this style too. The Bentley, Haynes and Pelican tech articles don't even acknowledge the existence of this style. Most of the cars seem to use a large retainer nut that you clamp onto with a plumbers wrench and unscrew the front of the driveshaft. Mine had a nut hidden in the u-joint behind the CSB that needs to be loosened with an 18mm box wrench.
![[Image: SamPOEwh.jpg]](http://i.imgur.com/SamPOEwh.jpg)
Victory!
![[Image: I91cowah.jpg]](http://i.imgur.com/I91cowah.jpg)
...yeah, I think it was time to replace this...
![[Image: hI78RGoh.jpg]](http://i.imgur.com/hI78RGoh.jpg)
Now I just need to get a gear puller to remove the old CSB and wait until I can order parts to start putting her back together.
Now: 07 Porsche Cayman S | 18 VW Tiguan
Then: 18 VW GTI Autobahn | 95 BMW M3 | 15 VW GTI SE | 12 Kia Optima SX | 2009 VW GTI | 00 BMW 540i Sport | 90 Mazda Miata | 94 Yamaha FZR600R | 1993 Suzuki GS500E | 2003 BMW 325i | 95 Saab 900S

