Need advices : Resonated or Non-Resonated Midpipe ?

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05-04-07, 12:34 PM

#26

Railgun

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Quote:

Originally Posted by rynberg

Actually, subjectively, a 10 dB increase is required to be twice/half as loud. A 3 dB represents a doubling in power but our hearing is not linear and perceives a 3 dB change as barely noticeable.

Off-topic acoustics education done.

"___________"

That's some witty remark that seems to escape me at the moment. But touché.

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05-04-07, 12:35 PM

#27

Herblenny

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hus, RB duals are pretty quiet over all.. I've personally heard full exhaust with RB duals and its pretty nice. Its not loud like some full exhaust with catback...

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05-04-07, 12:39 PM

#28

KaiFD3S

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here is a little video I made with midpipe and rb dual, granted I am single so you do hear the wastegate open at high boost, I am running RE Amemiya TA exhaust right now and it seems quieter than the RB duals, still have to get the car on the road to see if it is quiter though
http://www.youtube.com/watch?v=e6BO5whINko

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05-04-07, 12:47 PM

#29

hus

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/\ Nice vid!

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05-04-07, 02:06 PM

#30

David Hayes

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Quote:

Originally Posted by MADDSLOW

I can't see how this would be true? Both MPs are straight flowing with no turns(rx7store, test pipe), and I just can't imagine how it's posssible for the muffler to lose 10hp?! That's a LOT! I'd like to hear someone else chime in w/ an answer, bc now I'm upset...

I'm no expert with this. My understanding is that flow is impeded, more on the Magnaflow than on the Borla. Can't remember where I heard this so take it for what it's worth. Either way, I'm very happy with the Magnaflow setup from the RX7 Store.