This is my review after dealing with Andy Divers @AD-ENG on two different occasions one in 2016 and one current. December 2015 I ordered a 1000hp intercooler. I was told 2-3 week turn around. I asked if he could make 3 inch Inlet and outlet pipes. I paid for it straight away and got confirmation he could make 3 inch inlet and outlet. That reply was on the 31.12.2015 I sent several emails asking if it had been made yet and has it been shipped. I did not receive a response back until the 30.01.2016. I finally got a response that he's busy and it has been shipped. I received the intercooler 2 weeks later which is normal shipping to Australia. It wasn't made with 3 inch inlet and outlets like I asked. That was the first purchase. Next purchase was this year. I snapped an axle at the drags and wanted a decent setup. Only strong setup is the 8.8 diff, DSS axles and the custom drive shaft he makes. I PMd on a forum then called Andy the next day. Was told a 3-4 week turnaround for the axles but had 2 diffs still available. This was on 26.04.2017 I paid half on 27.04.2017 Paid in full 17.05.2017 Sent axles as cores 03.06.2017 (had trouble getting them out) Andy sent an email saying he will ship them on the 9th June. I requested if he could send tracking and asked it had shipped via email and by calling his workshop and leaving msgs. 07.07.2017 I got a reply saying sorry drive shaft shop made incorrect length. He said he would ship the diff and drive shaft straight away and get drive shaft shop to ship the axles straight to me. After not recieving any email replies or getting back to after leaving msgs on his phone again I asked for a refund on the 25.07.2017 Then I got an email straight back saying he sent an email last week why would I want a refund, Andy sent me a draft but did not send it from a few days earlier, it stated that he would ship it on Tuesday written on the 17th July, so I expected it all to ship the next day. I never received a tracking number or any response. 02.08.2017 Andy sends an email saying "your 8.8 has shipped" and some else who I don't know will send me tracking. Yet again I don't get a response or tracking. This is after emailing a few times just asking if it was everything as it didn't mention what parts were sent. Saying "8.8 has shipped" isn't much information. I called the workshop on Andys line and someone from Horsepower Barn answered and said Andy will be in tomorrow and he'll let him know I called. My msg was Its Brendan from Australia and I'm pissed off and I want my parts. I made it clear in phone msgs and emails that I'm pissed off and I'm sick of excuses. Still no response. Basically Andy does not do what he promises. He tells you your stuff has shipped then he does not reply to you. Longest wait was around 4 weeks. On average I have been waiting 2-3 weeks for any response. Then he just emails and says he will ship it today and you don't hear from him for weeks. I paid Andy for this in full over 13 weeks ago. Even paid deposit 2 weeks earlier and asked how long it would take, quoted 3-4 weeks. This cost around $7500au and my car has been sitting there waiting for this 8.8 diff, axles and driveshaft since then. More importantly I have missed most of the drag racing season. There is 3 meets left, one tomorrow. Biggest car event in my town is next week. I really thought I would of had this kit much earlier and payed for a few events after Andy said he had shipped the kit. I paid for a drag meet on June 30th as I was told the kit was shipped, which obviously it hadn't. Ive also paid for an event next week which is the largest street roll racing event here for the year. I purchased early bird rates as I never thought it would ever take this long. I have purchased around 30-40k of parts for this car and have never dealt with someone like this. A blatant disregard for their customers, this had been shown over and over. He has been the worst person I have dealt with. He wil reply frequently until you pay him then he doesn't care. I'm yet to receive anything and have been waiting over 3 months. Highly recommend staying away From AD Engineering.