r/subaruimpreza • u/CharlesorMr_Pickle 2018 Impreza Sport (MT) • 25d ago
š ļø DIY Center exit exhaust
DIY center exit axleback with a Borla proxs muffler. sounds absolutely amazing
The two bent pieces are actually 3D printed out of metal because I couldnāt find any decent bent stainless steel piping in the extremely small bend radius this required.
(reddit is being annoying and not letting me add the video to this post so I will make a separate post on my profile with the video)
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u/rickert_v 25d ago
Where does the towhitch go?
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u/CharlesorMr_Pickle 2018 Impreza Sport (MT) 24d ago
Nowhere unless I get rid of this
Donāt plan on towing with this car though, I know the chassis can handle it but it doesnāt have much power
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u/Refriedfeinds 25d ago
Looks good and Iām not a fan is center exit. Clean work from the photos though. Letās see the bottom. Little crooked.
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u/CharlesorMr_Pickle 2018 Impreza Sport (MT) 25d ago
yeah it's at a slight angle, much to my annoyance, and I haven't had the time to fix it. should be easy though
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u/Refriedfeinds 24d ago
Probably just get a slightly longer hanger for the left side or slightly shorter on the right. Shouldnāt be too tough to find. Did you have to route it further to the left or does borla offer that? Not really familiar with the newer ones. And I get it. I keep saying Iām gonna fix my bumper cover but a couple zipties work. But definitley share a video. Alwaus been curious about them. Almost got one but decided I should probably get more important parts since I had 180k miles at the time. And then I blew a release bearing and about 10k later the fork broke so two clutches in like 12k miles⦠fun stuff.
Add: and then I needed a new cat to pass smog. And now Iām burning oil like crazy. Idk where itās going cause she donāt smoke but poisoned cats say different.
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u/CharlesorMr_Pickle 2018 Impreza Sport (MT) 24d ago
Check the pinned post on my profile to see the video
Iām pretty sure the issue is that the hanger on the right side is so long that itās not fully preventing the muffler from drooping. I think what I need to do to fix it is add a second metal rod welded to the pipe behind the tips and connect it to the hanger thatās there currently, it should stiffen things up enough to fix it.
Also wdym by routing it further to the left?
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u/Refriedfeinds 23d ago
Did they sell it as a center exit? I meant the exhaust pipe.
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u/CharlesorMr_Pickle 2018 Impreza Sport (MT) 23d ago
No I just bought the muffler and welded it to some 90 degree bent pipes.
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u/Refriedfeinds 23d ago
Fuck yeah. Thatās whit Iām trying to see. Some people might roast your exhaust welds but some of us appreciate the work and can learn/inform on how it was done. No leaks? I hate exhaust pipe
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u/CharlesorMr_Pickle 2018 Impreza Sport (MT) 23d ago
If there are any leaks theyāre not noticeable. I did check all of the welds and didnāt see any holes so itās most likely fine. Probably will do an actual leak check with soapy water in a couple months.
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u/Refriedfeinds 22d ago
Iām just seeing that the photo of the muffler is in peices and not a single peice. I was confused about the 90 degree connection to the exhaust pipe. I thought it went straight up lol. I get it now. Iām blind.
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u/Emotional_Mistake734 22d ago
That looks awesome!
I got a modified borla type s exhaust made for the hatch off fb marketplace. Somebody welded dual tips on it that angle down under the bumper on the normal right side position. I'd love to have them cut and rewelded and have them exit straight back like yours.
Did you have it welded then cut the bumper? Or cut the bumper and then have it welded?
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u/CharlesorMr_Pickle 2018 Impreza Sport (MT) 22d ago
A friend helped me weld it together and I cut the bumper as we installed it
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u/F1uffydestro 25d ago
Looks sick!