What do you thinks about this muffler for NA setup?

Source: http://www.sardracing.com/arouse_mig_r.htm

The MIG (Muffler Intelligent Gateway) is a muffler with an active valve system developed by SARD. The valve which is built into the muffler, remains closed at low RPM and gradually opens up at mid and high RPM range. This unique design offers better throttle response while providing more high and low end power, and at the same time provides a smoother and more linear powerband.

1. New active valve system for better flow of exhaust gas

2. Noise control at idle and low RPM

3. Slanted tail design for more aggressive and stylish looking

4. Aggressive exhaust sound at high RPM

 

Definately an interesting concept, id like to see some dyno numbers on this exhaust.

 

its just like the greddy muffler..... thats a cool idea tho ive always wanted one

 

I forget who, but someone in the states makes these i believe, and has been for a while. I remember seeing an ad on the back of an issue of Import tuner

 

didnt fujitsubo come up with similar design long time ago ?

think the oem DC5-R backbox has this kinda design as well. think i read about it on here

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fwdtamiya &raquo;</TD></TR><TR><TD CLASS="quote">I forget who, but someone in the states makes these i believe, and has been for a while. I remember seeing an ad on the back of an issue of Import tuner</TD></TR></TABLE>

greddy

 

I am using it in my JZA 80 it works very well but in the end i ended up taking the system apart bcause i want more sound, should keep the noise down on NA cars though....

 

.....apexi has a similar system as well.

http://www.apexi-usa.com/produ...Num=1


They also have a silencer that works with regular exhausts and does something similar:

http://www.apexi-usa.com/produ...Num=1

 

Bought my SARD muffler, it looked similar to a tanabe w/ a funky built-in silencer
I always wanted a straight through muffler thats aggressive looking and quiet, this one should be good.