Quote: on another note...whats the opinions on that cross over in the intake was to eliminate the H-pipes in the exhst sytem that cars came with back in the day
I'm not saying the old guy's right on the reason, but he's right that there can be sound tuning effects.
Back when I was trying to solve some heatsoak problems, I tried a blocked crossover on one of my cars that has an X-pipe. At somewhere around 2500 rpm I got an **awfull** exhaust resonance, so bad that I could hardly drive the car thru the neighborhood. It only lasted a few hundred RPM, but it was loud, and sounded like 2 Hondas fighting inside a metal shed. Should've videotaped it for posterity and youtube.
Should've videotaped it for posterity and youtube. 
