05-24-2013, 01:37 AM | #1 |
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Variable Valve "Butterfly" Exhaust
Are there any local shops that have and can install a variable valve butterfly exhaust?
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05-24-2013, 01:44 AM | #2 |
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Look into DMH cutouts, choose the piping size you want and go to any muffler shop and let him make you a new front or mid pipe which ever has more room. I'm running one on another car I own and might consider it on my frs because every time I visit La with my strait pipe I get weird looks
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01-27-2014, 09:10 PM | #3 | |
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It's the Frequency Intelligence exhaust: [ame="http://www.youtube.com/watch?v=QJlo0c4swXc"]FiE TOYOTA FT86 Subazu BRZ FR-S Valvetronic Sound Acceleration db Test Frequency Intelligent Exhaust - YouTube[/ame] |
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10-01-2015, 09:55 AM | #4 | |
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anybody ever gain some ground on this, been looking for something unique for me as well.
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10-02-2015, 04:59 PM | #5 | |
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I still want to do something like this at some point tho: http://www.ft86club.com/forums/showthread.php?t=47080 |
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10-03-2015, 03:28 PM | #6 | |
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Yeah its an auto, deal with it.
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10-03-2015, 04:10 PM | #7 |
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I installed a Dynomax VT muffler that has a spring butterfly valve inside. For having 2.5" overpipe to 3" exhaust, it keeps the car pretty quiet during normal drive and loud during full throttle. No power loss.
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10-05-2015, 01:02 AM | #8 | |
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10-10-2015, 09:42 PM | #9 | |
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Here's a clip of the sound. It sounds louder in the video than in actual person. Plus the sound isn't captured well on my phone [ame="https://www.youtube.com/watch?v=SPWSadULKPY"]Custom 3" exhaust on FR-S - YouTube[/ame] Sent from my LG-D800 using Tapatalk Last edited by wasupman2; 10-12-2015 at 09:34 PM. |
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10-12-2015, 03:25 PM | #10 | |
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Thanks for responding with the post! |
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10-12-2015, 03:31 PM | #11 | |
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10-12-2015, 04:26 PM | #12 | |
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EDIT: Just noticed you actually have a resonator leading directly into the muffler! How does it sound on the highway and such? any drone? |
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10-12-2015, 05:00 PM | #13 | |
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I've been traveling on the highway for a year with it installed. It doesn't bother me. I'll post a video from my dashcam to give an idea how loud it is from the inside. Sent from my LG-D800 using Tapatalk EDIT: @stoked_on_spool Here's a clip of the noise in the cabin. [ame="https://www.youtube.com/watch?v=HjoohmSn2SQ"]Exhaust Clip from Cabin - YouTube[/ame] Notice how it gets loud when I'm accelerating and then it becomes nearly quiet during cruise. It's not actually that quiet, that's just how different the noise levels are when the muffler's valve is open and closed with relevance to how much I'm pushing the pedal. Here's me driving at SoW with open windows and an awesome instructor. [ame="https://www.youtube.com/watch?v=Nb3SUD4fOWg"]Streets of Willow Feb 21st / Session 3 - YouTube[/ame] Last edited by wasupman2; 10-12-2015 at 09:33 PM. Reason: Added video links. |
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02-22-2016, 12:10 PM | #14 | |
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Are you still running this?
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