I'm totally with John on this one. In my opinion, if you were to run dyno tests on an engine like the low revving 235 with 2” pipes, open mufflers like chambered or glass packs and no crossover, then add a crossover, the dyno “numbers” would show a very small increase.
Running a crossover is like a V running both banks into one pipe, the running that through a cat, then back to two mufflers and calling it “dual exhaust”
There maybe some benefits, but the hassle and the idea of combining your exhaust to one just sounds stupid. You could probably go to larger pipes and get the same performance boost. Just 2 cents
Luis
