Making a Test Pipe
05-02-2007, 08:49 AM
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Making a Test Pipe
Has anybody made their own test pipe? What would I need to make a test pipe for a '86 2.8L? What size is the flange side and about how long and what size is the slip side?
2.8 test pipe 
05-02-2007, 10:40 AM
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Re: Making a Test Pipe
This has nothing to do with HP. The Cat is rotting out at the flange. I don't want to go for $100+ to replace it now... That's why I want to put in a test pipe...
05-02-2007, 12:07 PM
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Car: '10 Subaru Forester
Engine: 2.5 Boxer
Transmission: 4EAT
Axle/Gears: 4.44
Re: Making a Test Pipe
I would just hack off the flange and find the appropriate pipe diameter to slip it into the pipes... You might get a better response in the V6 section, it's probably a 2 1/4" pipe, but it could be different for V6's.
If you do put a test pipe in there, it's certainly not going to pass an NY inspection in any way shape or form... especially down in the city.
If you do put a test pipe in there, it's certainly not going to pass an NY inspection in any way shape or form... especially down in the city.
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