Varex Mufflers?

Anybody have experience with these variable mufflers?

https://www.summitracing.com/parts/xfo-vmk51-250/overview/

I have a Z3M coupe that I would like to have a sportier exhaust - but it would be cool if I could tone it down on trips, etc.

I'm cheap and this would be more spendy than I really want, although less than the premier aftermarket bolt on units.  Might be worth it to be quiet when not hooning.

Seems needlessly complicated.

I have found that making nearly your entire exhaust out of glasspacks does the whole quiet AND loud thing pretty well, but this is more elegant and tunable. 

I do have old Dynomax VT mufflers (discontinued i guess) on two of my cars. They have a spring loaded valve instead of motor controlled, but they accomplish the same basic task and do work. The only thing i don't like about them is if your idle is not perfectly smooth, the fluttering of the valve seems to draw attention to the fact that your idle is not perfect. If the valve was hooked to a motor that probably wouldn't happen.

Run a dual exhaust on one side with an electric cutout that switches between quiet and loud?

I thought about just doing an exhaust cutout ahead of the mufflers, but no muffler is I'm sure too loud.  Actually that's how I stumbled onto these.

There's not a ton of room under there, and there is a Varex that seems to have the same basic inlets and outlets on the muffler can.

I also considered getting a set of used mufflers and gutting them to some extent - but thinking that will be a lot of effort with a likely disappointing result due to drone or some such issue.

Just run a sane exhaust with an electric cutout or suck it up, buttercup!  Electric cutouts are pretty neat because they can be opened up anywhere between closed and wide open for varying degrees of loud.  

Barring that I would look at retrofitting something similar to the Corvettes with the vacuum actuated flappers.  This Varex looks like a solution looking for a problem.  

Well, another way of looking at it is if you have to pay someone to fabricate the 'y-pipe' for a cutout but could install this varex muffler much cheaper, it might end up being the same cost or cheaper than buying a dedicated cutout. 

Varex mufflers are pretty good. Mild to wild at the flick of a switch, can be as loud or as quiet as you want and the mechanisms are fairly reliable. In an ideal world I'd run them on all of my cars.

Do the varex mufflers have a way of controlling the valve with a hardwired switch, or is it only with the cheap looking remote control?

In reply to Run_Away :

They're controlled by a cheap remote, although there is an optional bluetooth module that allows tuning on the fly and fully active exhaust on OBDII cars.