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06-21-2014, 02:27 PM
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#1 |
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Dump tube muffler, halp!
So trying to keep the noise level down, I switched to the Q300 for the axle back and it helped with pre-boost, 1k ~ 4k RPM's. But once that open dump tube opens up, all hell breaks loose. Doesn't matter what cat back exhaust I have.
I did some research online about muffling the dump tube, rerouting it back to the exhaust etc. I really like the free flowing nature of the wastegate open dump tube, and not causing anymore pressure by re-plumbing it back to the exhaust. Has anyone put a muffler on the dump tube? If so, what muffler did you go with? Also will rerouting the wastegate exhaust gas back to the exhaust cause significantly more back pressure?
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Suzuki Swift GTI '89, Subaru Impreza L '96, Lancer OZ '03, Subaru Impreza WRX '06, Honda CBR600RR Graffiti, Volvo c30 T5 R '11, Subaru BRZ '13, Audi RS4 2007
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06-21-2014, 04:51 PM
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#2 | |
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Quote:
On a 2.5" exhaust maybe if you are pushing significant power. I would say 300+ whp would be where you start to see restrictiveness. On a 3" exhaust no. Unless you are pushing more power. I would say 400-500 whp. http://www.modified.com/tech/modp-11...ust-test-tech/ What kit do you have? I would re-route it and later on look into getting a larger exhaust diam. |
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06-21-2014, 05:04 PM
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#3 |
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in orbe terrum non visi
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Re route it.
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06-22-2014, 12:30 AM
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#4 |
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Re-route it. A muffler is going to be restrictive enough to cause boost creep (it's all been done before...)
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06-22-2014, 10:29 AM
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#5 |
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Seems Legit
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Recirculate it! You don't get the "all hell breaks loose" noise. It's civil, quieter and clean.
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2013 Subaru BRZ
