Shouldn't be hard to do, they sell kits. You'll definitely need a resonator. I have a 12" on ours and it's still not enough but definitely better than straight piped.
It’s from redline. Install not horrible but the new leather is a lot thicker so refitting is a bit more finicky and it’s easy to get twisted up with direction of material when everything is inside out.
Got the wife a green leather boot with neon stitching.
It’s a lot tighter than the stock one but I’m hoping it’ll stretch a bit. I’d like it about half as taut, the stock is way too sloppy.
I'd be whipping out the dremel and making the notch in the right spot, or decoupling it at the nearest joint and running silicone until they made the part.
I would think that once the heat exited the system the expansion tank would drain through the open hose. It was likely airlocked from the heat in the system and once it cooled down overnight the tank drained.
Just my guess.
I have a similar harness I got from crutch field and you just cut the speaker wires in the middle and go one side to amp and connect other side from amp to the factory wires