How about running straight duals out the back....no mufflers? I currently have mufflers with no crossover and they sound great, but the drivers side has a loose baffle or something and rattles a bit.
Was thinking about having the muffler shop just replace the mufflers with pipe.
During exhaust experimentation with Viper development, they straight-piped one & lost about 30 HP & the engine temp increased also about 30 degrees. They let things cool down & installed some mufflers. Everything came back into normal range. For a street car, it's my opinion you need an expansion chamber in the system. Plus, straight pipes don't do ANY tuning for sound, nor do glasspacks. Stu, for what it's worth, on a dual exhaust I prefer an H-pipe vs. an X-pipe. The crossover should be .75 the diameter of the system. On a 2.5" dual, the crossover should be approx. 2" according to the math. Helps to equalize pressure between banks & mellows the sound a little.
