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Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

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Old 12-12-2013, 08:25 PM   #1
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9-3 Blow off

Hell friends. First off I would like to say hello to this Saab forum! The old forum that I was apart of were rather rude with questions. Hopefully this one will be better!!

I have a 1999 Saab 9-3 SE B204R HOT and I want to put a blow off valve on my turbo. What blow off valve should I get? Are they very difficult to install?

I know that you are unable to put a blowoff on the other version of this motor so I made for sure that I have the HOT version.

Since that is all out of the way current specs:
Stock muffler has been removed
4in N1 racing Muffler tip on it currently


Im going to be removing the resonator from it next week. << do not think that will have anything to really do with wanting a blow off valve installed though.
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Old 12-13-2013, 01:56 AM   #2
 
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You'll find that this is a small community and most people visit both forums.

The BOV you pick is a matter of choice determined by how you want it to sound and how much you want to spend. They are not very difficult to install, but you will need to have some basic knowledge of how your engine works and the location of the components.

The 1999 9-3 has the same turbo engine that has been used since 1994, so there are countless threads regarding this exact mod, many with pictures that detail the steps needs to to change the current bypass valve into a blow-off valve. A member, ERP, used to have an extremely well documented how-to site, as does a member Dip, who has an excellent resource for Saab owners. You might start searching there.

Your exhaust setup has no bearing on the BOV.
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Old 12-13-2013, 04:43 AM   #3
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Get this one. Great sound and performance without paying the name brand price
Black Aluminum Bypass Valve for Turbo Saab Audi Porsche VW Diverter Valve | eBay

Sorry for the mobile link, I'm on my phone.

Edit: hands down one of the best blow off sounds IMO
here's a vid of my car when i used to have that same valve
https://www.youtube.com/watch?v=UdQowNHmMPY
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Last edited by grkguy89; 12-13-2013 at 07:30 AM.
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Old 12-13-2013, 10:29 AM   #4
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Originally Posted by grkguy89 View Post
Get this one. Great sound and performance without paying the name brand price
Black Aluminum Bypass Valve for Turbo Saab Audi Porsche VW Diverter Valve | eBay

Sorry for the mobile link, I'm on my phone.

Edit: hands down one of the best blow off sounds IMO
here's a vid of my car when i used to have that same valve
https://www.youtube.com/watch?v=UdQowNHmMPY
Alright I will definitely take a look!!
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Old 12-14-2013, 07:01 AM   #5
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I have a similar valve to that on my wagon, too. Sounds great on my car, even recirculated.
For simplicity, you want a bosch replacement, but you can use any valve you'd like.
Most vendors will list them as VW replacements, which is fine. They're interchangable.
If you get one and want to vent it, you need a filter for the valve, and a plug for when you remove the tube from the intake.
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Old 01-26-2015, 06:30 PM   #6
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Hey guys, didnt want to start another topic about this so I figured I would reply to this one. wanting to try this for my car ( 99 9-3 ) Wanting to try this with the stock components to start with. I can figure out the plug for the intake but could use some help with the filter for the valve. Any tips of where to buy or what size I need would be most welcome!
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Old 01-26-2015, 06:36 PM   #7
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So you want to use the stock BPV to vent? Yeah you'll need a filter, or you could buy the twin piston Forge unit. I actually have the Genuine Saab machined aluminum plug for the intake on T5 cars like yours, I'm not using it. PM me if you want it.
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The only reason it took all day to install was because we couldn't keep our dicks out of each others mouths.
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Old 01-26-2015, 07:15 PM   #8
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So you want to use the stock BPV to vent? Yeah you'll need a filter, or you could buy the twin piston Forge unit. I actually have the Genuine Saab machined aluminum plug for the intake on T5 cars like yours, I'm not using it. PM me if you want it.
pm sent
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