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Vibrant Ultra Quiet resonator w/ Magnaflow 4" round muffler

resonator exhaust sound before/after vibrant magnaflow

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#1 Swami



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Posted 31 March 2015 - 05:29 PM

Made this quick video of the exhaust sound before/after installing a Vibrant Ultra Quiet resonator. For anyone else considering the Ultra Quiet, here is a sample of what you can expect:



It's worth mentioning that this resonator (part#1141)  has a 4" tall x 6" wide oval body, so it would have hung pretty low, if it had simply been welded in-line on the 2.5" MSA performance exhaust system. A new front section was fabricated, with a moderate arch to it, in order to keep that thing way off the ground. There is about 1/2" of clearance between the resonator and driveline. Unfortunately, this thing would need to be removed if you had to service your driveline. I believe you can still drop a driveline without moving the straight pipe from MSA, but i could be mistaken. Drone has been significantly reduced in the cabin, to the point that you can have a conversation without yelling. But when you mash on the gas, it's still punchy as hell. It just feels like it's punchy with boxing gloves on now, instead of bare knuckles. =)


resonator-1024x576.jpgIt's not a tapered bullet shape either, so it's extra important to tuck it way up in there. I'd hate to see what kind of carnage would ensure, if it snagged on something.  



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Posted 28 January 2016 - 12:54 PM

Man, that made one hell of a difference, didn't it?  Sounds more European and less boy racer to my ears. 

Scott Ferguson
1973 240 (I-6), 1973 240 (I-6), 1976 280 (I-6)  260-Z (V-8), 1973 240 (I-6)
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#3 CRAracer05



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Posted 30 January 2016 - 05:19 AM

That sounds really good, there is no rasp at all. It kind of reminds of a 350z exhaust tone.

1976 280Z - N42/N42, flap top pistons, Weber 45 DCOE, 280zx 5-speed, ZG flares, Z432 Spoiler, build in progress, rest to be determined.

#4 Snailed


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Posted 30 January 2016 - 06:27 AM

Sounds much nicer now. If you are just using the O2 to plug the hole you may have killed it. They don't like being in the exhaust without being powered.

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