940T, 260k. Original exhaust, which my friend who has a 760T noticed was the same diameter pipes as the nonTurbo, 50mm. So, knowing of my quest for the Grail, I mean power, and after reading some of StealthSTI's musings about performance and the exhaust systems he did for some of his rebuilds, that getting gases Out is as important as getting them In, and due to holes in the muffler saying 'it was time', we entered... the PnP zone.
We saw various 7 and 9 cars but most had the same size pipes. Then there were some S90 cars, one of which had a very good looking set of pipes. So to speak. 60mm, with a great resonator and the Huge rectangular muffler, which at first glance looks like it couldn't fit. But he measured and was sure it would fit.
So;
It fits, very well. The basic body shell is the same between the models, and the S90 has the indy rear, so the pipe over the axle has even More room. I had taken the aluminum heat shield and brackets on the car also but didn't need them as they're all the same. All hangars line up correctly. The muffler shop I had put it in did a great job, making a new pipe over the axle which we had cut badly taking it out. If we had more room to get at it at the pnp I would have needed no new parts. The only thing not stock was to weld an adapter to fit the pipe on the back of the cat.
Power increase is...dramatic. Low end takeoff is nicely improved, and it runs through the gears with alacrity. Very modest throttle gives immediate results, in a not unpleasant manner. It is the single best performance thing I have done since I had a trick Karmann Ghia that smoked some bimmers. *grin*
But seriously, this was a remarkably simple power mod that fits and works, and in addition the car is now virtually silent, eerily so, even when flying by.
The only issue is that my tow bar doesn't fit, I need the S90/V90 one due to the much larger muffler. And I am eager to see how or if mileage is affected; will report back about that.