I've got an oppointment tomorrow to get the stock muffler cut off and replaced with a Flowmaster super 44. Has any else done this on the 3.5 ? do they like it ? I'm doing it on my standard cab ZQ8 more for the sound than performance but a little more flow always helps. I think the 3.5 has ample power in 2wd standard cab form but I can see where a 4wd 4 dr would be sluggish. I tow a little but light loads like motorcycles and maybe double trailer with 2 three seat jet skiis would be the heaviest. What do you guys/girls think ?