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| Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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10-09-2022, 05:57 AM
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#1 |
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Exhaust manifold + Resonated Milltek (db's)
Hello
I'm going to swap out the OEM manifolds for Greddy circuit ones. Supposedly the manufacturer indicates that with its Greddy exhaust line at 5.2rpm it gives about 94db. I have a resonated Milltek system with CE approval certification, which is within the European regulations regarding CO and noise. I have seen this post https://www.ft86club.com/forums/showthread.php?t=110193 and I see that there are noise suppressors for the exhaust, but the link has expired. Here in Spain, the technical inspection of vehicles sets DB limits around 2.5rpm and 3rpm, but when installing the new collector it could exceed the allowed DB's. Could you tell me what options I have to lower the noise? How many dB have oem exhaust in 2.5rpm and 3rpm? My android phone does not take the measurements well. Thank you very much and excuse the google translator hehe 
Last edited by Alastor; 10-09-2022 at 07:48 AM. |
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10-10-2022, 08:14 AM
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#2 |
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Some help? any quick option to lower the db without changing anything?
Is there any problem if I change the map to work with the new exhaust manifold and put the OEM manifold, to go to the inspection? |
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10-10-2022, 01:01 PM
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#3 |
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Where I am they don't do any inspection based on the db of the exhaust so hopefully someone knowledgeable will chime in. (or you'll be the first to figure it out)
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10-10-2022, 02:39 PM
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In Spain there are sonometry tests in vehicle inspections (ITV) for motorcycles, but in my community a few years ago they are being done for cars as well.
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| The Following User Says Thank You to Alastor For This Useful Post: | Wally86 (10-11-2022) |
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