THis is the only properly designed exhaust for a 9111 that I have ever seen which merges the 2 sides
All Jaguar, BMW, MB etc straight 6s do it like this but w/ fewer bends and a longer fetch to implement it in.
To do the same on a 90° V8 w/ a 90° requires either this
or this
for 4cyl engines which are also even fire this is common, this Tri-Y gives a broader torque spread than the 4 into 1 design
as is this
