This might have been said but i couldn't find much and not with my info. I have a 98 gsx with 132k miles on the body and the top end with work down to it has 150 miles only. I am having the bottom end built to be able to push 375-400hp. Then next year put a stage three trans and get my car to push 500-600hp. Its a 5 speed. it has a stage 3 top end build with 272 cams and there adjustable. Has the arp works. I am building the car and adding a precision 52/52 ball bearing turbo, a evo 3 mani,wally 255, fmic, 780 injectors and other go fast parts. Has a srs 3" exhaust system with no cat. So I need a tune so i was told i could go dsm link or keep the black box ecu and i was thinking to keep the black box as i read somewhere its almost the same as dsm link but not sure. So thats what i need help with what does the black box ecu and dsm link have in common and how are they difference? I am new to the whole dsmlink so im not sure what dsmlink does. i know its how you tune the car but what else? I know with dsmlink you can have 2 step but what else? Also i know if you tune of a black box you need to flash it. But i dont know if you can get the same stuff out of it like 2 step and such? Also i know you have to have eprom for dsm link and then dsm link is about $500 or so but if black box comes in 98-99 dsm why don't more people use it? do you need anything else to tune a black box other then flashing it? I know dsmlink you need a laptop but do you need one for a blackbox? Also I just want to be sure with my build im doing the right think and going black box. I just want to get the same things id get out of a dsmlink. I am already spending a ton on my build which im fine with but if i can save with black box having almost a dsmlink id go that route.

I know this is long but if you guys could help me out as much as you can answering all my question id appreciate it. Links would help but id like more answers on here to make this easy. Thanks in advance