I love the look of the Mugen Twin loop and have heard the quality is 2nd to none(I have never seen one in person). I was wondering if anyone here is running just the axle back portion on a Type R, or the full cat-back? I wanted to get comments on sound quality, fit etc...Pics would be great...
My plan is to run a Carsound cat, custom 2½" mandrel bent cat-back and a modified Twin Loop designed for the Civic Si. Any clue what kind of power gains can be had from this on an otherwise stock Type R except removed resonator, k&N drop in and cold air extension off the stock airbox?
Thanks for any and all info/comments
Mark

 

if you want a twin loop design than save the 800-1000 and get the hitech twin loop. if the price people have been stating is correct ~600 than that would be the one to get. it is a full 2.5" all the way through to the tip.

 

i really love my twin loop..ultra quiet and makes as much power as a straight through design(i know it is a straight through desighn itself)..i saw the hytech twin loop this weekend on vago's (luis) car..awesome...superior quality and plenty of power..its nice to see that kind of craftmanship from this side of the pond

 

Fitment is excellent. Build quality is gorgeous. I felt bad putting in under the car. Sound can be described as "mellow". It is much deeper than stock, and it vibrates the car a bit at idle with a super low frequency hum. It is not loud by most standards. It looks awesome. Gains are probably minimal without the other pieces of the puzzle (header, cat, etc)

 

The Mugen is not THAT quiet especially if running aftermarket cams. My car is now almost as loud as an N1 now, sets off alarms and attracts police - which is not a good thing. Power is always loud I guess.

 

actually with mugen cai and twin loop cat back did 178 whp

 

What is the ppoint of a twin loop exhaust? Why is it better/wors than say the Apexi N1??

 

that's interesting Big Phat R.

Sure, it louder than stock, but if you compare it to most of the typical exhausts out there (the buzzy, lawnmower, moped type) it's quite subdued. I think because it's overall tone is lower, it's not nearly as noticeable. I like the fact that it's not really that loud while just at cruising speed.

I hear some of these little ricerockets around town that are just god-awful loud, and they certainly aren't running cams.

 

It still has gorgeous sound - just loud. No buzziness or resonance like those fart-can exhausts and definitely waaaay nicer sounding than ANY N1.

The purpose of the twin-loop is to cancel some of the unwanted frequencies of sound in the exhaust by having it pass through the resonator twice (but still retaining the efficiencies of the straight-through design).

This is what Mugen says:

Silencing characteristics and the quest for exhaust efficiency: the two requirements imposed on exhaust systems have a contrary relationship, and in practice it is extremely difficult to achieve both. At Mugen, we have continued to employ the straight configuration, with the design philosophy that low exhaust pressure must be provided, and that reducing exhaust resistance is an important part of the ideal exhaust system. The straight configuration is widely used in racing, and is ideal because, as the name suggests, it provides low exhaust resistance. However, large silencers are generally required, as there may be problems with mid to low frequency band silencing and scattering of sound absorbing material such as glass wool with the straight configuration. Incidentally, the inverted multi-layer expansion-type silencer widely used by automobile manufacturers provides stable silencing performance, as the sound passes trough several divided silencer chambers, but involves the disadvantage of some output loss and is larger and heavier than other silencers. As a result of our quest for the ideal design for racing engines, Mugen developed the "twin loop-type silencer," in which the pipe is twisted into two loops and passes straight through the silencer twice. This could be considered the ultimate arrangement, combining the concepts of "absorption" and "intervention" in an ingenious manner. It surpasses normal systems in power and torque over the full range, and provides the required silencing and the clear Mugen-Honda sound.

 

I just installed my twin loop yesterday and I LOVE it. It sounds a little louder than stock and it made a difference in power. Before the cat-back system it felt like the flow was restricted, but now it feels great. I have a MUGEN header, stock cat and twin loop cat back. I would recomend it above any other exhaust

My 2 cents.

 

Thanks a lot guys for all the Info, it's defiantely everything I was looking for. Also, does anyone know where I can buy the twin loop at, either new or used? I know King is the only North American distributer but I know a few other shops that say they can get them too. Thanks again!
Mark


[Modified by 01ITR#700, 1:24 PM 7/25/2001]

 

I got the cat-back system. It bolts right on to the cats No problem. I got it on in 1 hour. You will only find it in the 950 t0 1000 ball park.

 

Anybody know if the one @ inlinefour.com is the whole system or just the end portion?

Jerry

 

On the King Motorsports site, it has the price listed at $499 for a coupe. Then it says add $180 for traditional design, what exactly are they referring to?

 

I believe the 499 is for the axle back section, maybe the rest is for the B-pipe, try asking King... I absolutely LOVE my twin loop - I've had it on for less than a week, anyone else have a sedan w/twin loop?