They have poor customer service from what ive read , and sell knock off fuel injectors but charge you for name brand. But i guess for the money its hard to beat. Ive also heard that the piping isnt so bad but some have had to replace the turbo after a year or two. But this is just a little of what ive read to i dont have any first hand experience
yeah ive heard a lot of mixed reviews honestly more not so good then good. I looked into one for the longest time but I just couldn't push myself into testing it. I do know that almost every video I saw they either blew up or they got rid of the turbo because it was too much trouble. but like he said ^^^ ive never had any first hand experience.
Ive seen the kits work really well. Dint buy their maf, dont buy their fuel system parts. Get the 70 mm kit and replace the wastegate with a high quality one. Dont use their oil return line, make your own. Ive had one make 550 on my dyno.