i think the smile says it all.

thanks blacksheep!

 

True dual piping is going to be a huge waste, and you'll likely end up slower in the end anyways. Dual 2.5"s is going to be way overkill on a 3800 anyways, thats a lot of pipe area. You're talking ~9.82 in^2 of cross sectional area between the two pipes. A single 3.5" pipe is only ~9.62 in^2 in cross section. A 3" single pipe catback is probably way overkill for your mods, so could you imagine doing bigger than a 3.5" catback? Not to mention all the weight you'll add. IMO its not much better than running two intake tubes.

Lastly, what would you plan to do with your O2 sensor? You only have 1 that reads fueling.