Show us your exhaust!

[Patriq]

A couple of variations on the theme....

The single exit system on the 2.5 24v Busso is the nicest sounding car we have built & arguably the closest to sounding anything like a real Stratos with the single note howl. Carbs or throttle bodies could seal the deal!

With single exit system, are you referring to the lower one? Reason for asking is you mention this sound most like the real. But don't they usually have the setup of the upper picture?
I've recently built a new stainless system for my -84 Alfa GTV6. I haven't started the car yet, so haven't been able to compare the sound. But instead of collecting the two parallel pipes exiting the first muffler with dual in- and outlets, the system is parallel all the way. But, I did add a X-pipe just before the dual muffler after being recommended to do so. To get the "Brrrap" instead of a "Boap".
(I also did a set of two parallel pipes with fittings at each end to simply replace the dual muffler) ;-)

I see some have a T-arrangement (from LB?). Split at the center and running paralell to the transversal bar of the frame. Which would in some sense be something like a X-pipe. How are they collected? Maybe these cars all run turbo?

But to me, listening to real Stratos having the arrangement in the upper, it has quite a crisp sound if you ask me. You wouldn't have sound/videos to compare these two...?