My dealership told me I could do whatever to the exhaust as long as the Cats aren't touched. I cut the muffler and flapper off and welded in a Magnaflow muffler. It has a slight drone when the AFM kicks in.
I really wanted an RST but at the time they were outrageous in price. I was torn between the Trail Boss and the Sierra Red Quartz Elevation. I went with the Trail Boss for the off roading aspect of not having to add a lift or leveling kit.
Has anyone taken a Custom Trail Boss and done the LT Trail Boss fog lights on it? I am looking for a plug and play kit if there is one out on the market. I'm trying not to source every single individual part from GM. I'm pretty sure I would have to go get the BCM reprogrammed if I'm not mistaken.