Quoted from mpdpvdpin:Yes, the addition of any mod across all manufacturers including Stern voids the warranty UNLESS it is an approved modification from the company. This is a standard practice. Are you people NEW?!
Not new in the least. But when they've always been an approved mod in the past, and no one said any different this time makes a difference. Read what some have stated...Spooky confirmed with the one guy that the knocker kit number was correct. They didn't tell him that it wouldn't work. Nice.