I know at least a few people out there like to make their T7 turbos known and wish they could run a real blow-off valve like T5 cars. Messing around some has gotten me some real results: car performs well, T7 is happy (no CEL!), and a "blow-off" that is like an actual atmospheric valve.
Components:
-Taliaferro open air intake with huge K&N filter (from GenuineSaab of course)
-Forge Motorsport 007 piston diverter valve (also ordered from GenuineSaab)
The one difference: orienting the valve in the reverse of how Saab puts it from the factory. Technically Saab has the valve on there backwards to begin with (to hold more boost I have heard). Going opposite of the stock way actually seals better at idle and low throttle (since the bottom of the piston is actually against the pressurized air--in the stock position the pressurized air hits the piston sideways) and results in a louder release. Better for sound and technically performance too. NOTE: the pipes to the diverter valve don't lend themselves to this orientation as well, it is a tighter fit because the valve sticks out farther.
Picture of the setup:

I made a video of my car revving in the garage (you can hear it better). The video's main purpose was to showcase the Remus exhaust, but near the end I rev it hard twice and "blow-off" for the camera. I can make another video if people want that would be more focused on the intake.
Components:
-Taliaferro open air intake with huge K&N filter (from GenuineSaab of course)
-Forge Motorsport 007 piston diverter valve (also ordered from GenuineSaab)
The one difference: orienting the valve in the reverse of how Saab puts it from the factory. Technically Saab has the valve on there backwards to begin with (to hold more boost I have heard). Going opposite of the stock way actually seals better at idle and low throttle (since the bottom of the piston is actually against the pressurized air--in the stock position the pressurized air hits the piston sideways) and results in a louder release. Better for sound and technically performance too. NOTE: the pipes to the diverter valve don't lend themselves to this orientation as well, it is a tighter fit because the valve sticks out farther.
Picture of the setup:

I made a video of my car revving in the garage (you can hear it better). The video's main purpose was to showcase the Remus exhaust, but near the end I rev it hard twice and "blow-off" for the camera. I can make another video if people want that would be more focused on the intake.