the benefit of soldering chips is that in case one does blow the hell out of your turbo, the upsolute guy in your area can come to your house and put the original chip programming back in, no problem. thus - you can then take your car into the dealer and they will only know what they say. end of story. so all said and done, the upsolute system really depends on who is in your area. the guy in my area is readily available and knowledgable. every car he drives is upsolute equipped and he offers full support. he guarantee's everything or money back. im in tampa, fl btw. this is so damn convenient, i cant wait to get my car done...