General dual exhaust question...

Compared to straight sixes and V8s with dual everything...

Is it a true dual exhaust if it’s on a 4 – cylinder?

I mean, the exhaust is coming from one header, through one down pipe, through one cat, to one straight pipe, then splits out to two mufflers. Does this setup help relieve backpressure? If so, how much? Are you better off sticking with a single pipe to a single muffler?

….know what I mean? Just trying to figure out the best config for a sub 200hp engine…

Gotta learn sometime!

...Another n00b question from your neighborhood N00B!