I have one. No gauge. It was hooked up to my powerlogger. I'm switching to XFI. It will come complete in original box with all instructions and a new bung to weld in to your downpipe. Less than a 500 miles on it.
l'm looking for $100 plus actual shipping. PayPal as a gift is fine. Shouldn't be more than $12 for shipping. I'm getting it out now. I'll post some pics.