Mugen style muffler "Twin Loop"

[jjtackleberry]

I just found this Mozart "Twin Loop" muffler. Does anyone have any experince with it, or any info......
Thanks

[91zc]

I don't have any experience with the Mozart muffler but I do know that DCSports has the same kind of setup on some of their catbacks.
They have a catback that uses the twin loop technology like the Mugen system. Looks pretty cool too, full stainless system.

www.dcsports.com

[Integra-F20C]

u can see heaps on
www.mugen-honda.co.jp

twin loops gives better back pressure...and since our n/a hondas need back pressure to give us more torque at lower rpm, mugen designed it for us..

well..at least..that's what i heard it does.

but ANYTHING from mugen is trustable

[whttrshpunk]

I was under the impression that backpressure is always bad because it interferes with the combustion of the air/fuel...maybe i'm wrong...ask someone smart like fritz lol

[sparq]

Originally posted by whttrshpunk
I was under the impression that backpressure is always bad because it interferes with the combustion of the air/fuel...maybe i'm wrong...ask someone smart like fritz lol

Yup you are correct... back pressure is bad ~ Hondas do not require "back pressure" to run, infact no car does. LOL... :bandit:

[fritz_269]

The twin loop design is just a sound-tuning feature. It uses a tuned length of pipe to cancel a specific range of sound frequencies. It's a nice way to help reduce and tune the sound without increasing backpressure. In much the same way as the Flowmaster internal chamber designs.

In my personal experience, the performance difference between a premium, well designed, twin-loop, flowmaster, or regular twin or triple chamber turbo design is pretty much negligible. They do all have different sound characteristics though. Straight-through glass-packs have substantially less back pressure but are extremely loud (and usually illegal).

Read texan's "The Myth of Backpressure":
http://www.automotiveforums.com/vbulletin/t13199.html

[jjtackleberry]

Sorry I guess the question was more of.....the Mozart brand and is it worth buying over the orginal Mugen.
Thanks for your time

[flylwsi]

ok... backpressure is only bad in the highend...
if you have no backpressure, your topend soars, but your lowend sucks, b/c there is no pressure for the exhaust to push out against, making it work harder.
i know this is true, b/c my muffler has an insert in it, and when it is in the motor revs slower, and she spins the tires really easy... with it out, it revs quick, not as much spin, but overall it is more powerful in the topend...

and from all the corvette racers i know, backpressure is necessary.

[Someguy]

"Back Pressure" is a misnomer and a serious misunderstanding... See:

http://www.automotiveforums.com/vbulletin/t13199.html

[madtownhonda]

Mugen claims it to be 60.5mm (2.38") in diameter. What many people fail to realize about the design is that it is not the same diameter throughout. It necks down to ~2" as it enters the first pass through the canister and maintains this same diameter through the second pass. As it leaves the canister for the final time, the diameter becomes bigger as it comes to the tip. I can't see how that would be a good thing to have a 2" diameter throughout most of the tubing. You would imagine that the smaller cross sectional area would instigate an increase in backpressure.

I wouldn't imagine that Mozart, which I believe is Konig, would be any better...I would just stick with a regular muffler like a magnaflow or ES Tuning. I guess if you want to know, just call mugen and ask them

or if you want, Hy-tech I belive has a new twin pass coming out that maintains the same diameter throughout. With that comes a hefty price tag, but probably less then the Mugen considering it costs $530 for an axleback and $900 for a full catback:hehe:

[pymnmamnels]

Nice to meet you all
great site only a small post
catch you later

[RahX]

Backpressure is the wrong word to use. Resistance is needed to 'tune' the exhaust to attain a scavenging effect. If there were no resistance, the engine could still produce increased numbers but any engine can benefit from scavenging. Having any sort of bend or catalytic converter will impede the flow and break up the pressure and negative pressure waves so a fancy muffler on a stock exhaust will net you practically nothing despite what their documentation says. The sound is different (better or worse depends on the person that hears it) and about the only thing it changes.