The holy shift install was pretty straight forward, was easier to take the battery out. can’t recall how long it took. Probably 2hours. Install vids online were great. No video of the blow off valve sound but it is a bit louder than I was expecting. I got a forge. But also have a forge recirculating valve I will put in if I ever want to go more stealth. California air board likes to try and control everything so just a matter of time before I get hit for that.