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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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09-25-2015, 05:10 AM | #1 |
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high power-low db prototype muffler
ODM project sneak peak
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09-25-2015, 05:26 AM | #2 |
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Could you please tell me/us what style of muffler is this? That is, is it baffled, straight through? Is there packing material involved that is going to age and result in a louder muffler?
What are the chances of a single exit muffler with the same design criteria of high flow low noise?
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09-25-2015, 05:48 AM | #3 |
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Initial impressions is that the exits hang too low, it doesn't look quite right. Might depend on larger tips but those look smaller than OEM.
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09-25-2015, 10:12 AM | #4 | |
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Quote:
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09-25-2015, 11:00 AM | #5 |
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It doesn't age per se - it gets moved around and compacted as a result of the exhaust flow and thus doesn't absorb sound as readily as time goes on.
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09-25-2015, 11:03 AM | #6 | ||
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Quote:
There is no packing material. It's up to the designer if they want to do a single exit version. But everything is possible Quote:
The tips are from a factory FR-S which are small to begin with. |
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09-25-2015, 11:11 AM | #7 |
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Has it been tested with ace header and front pipe? Any sound clips or videos? I can't wait to ditch the rattling stock axleback!
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09-25-2015, 11:57 AM | #8 |
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Im in for single exit weight saving version
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09-25-2015, 12:10 PM | #9 | |
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Quote:
Not the best video...constructive criticism is greatly appreciated [ame="https://www.youtube.com/watch?v=pcc_yUqpuwQ"]ODM prototype - YouTube[/ame] |
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09-25-2015, 01:25 PM | #10 |
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WOW! Thats quiet!
I think for someone looking for a near stock sound it will be perfect. However while I'm okay with the DB level, I wish the exhaust note was sharper. |
09-25-2015, 01:36 PM | #11 |
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Sounds good to me, I'd want that if it was a full catback plus bigger tips.
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09-25-2015, 09:17 PM | #12 |
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Yeah, I think bigger tips are a must. Say 4", angle cut to match the angle of the number cutout.
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09-25-2015, 09:26 PM | #13 |
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Excited!!
Any plans for full catback? 4.5 / 4 inch tips? Ti option? Ballpark Eta? (i know thats a little obnoxious to ask so early in the r&d, but if you think you'll have the first ones out within a year I would definitely wait). Just installed Ace header and in the market for a catback now. Love your products ! Phil |
09-25-2015, 09:34 PM | #14 |
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At what point would this be needed over stock OEM catback? Can you test gains, if any, from using this rather than a stock catback?
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