Hi mate all I know is the intake has been opened up and deristricted inside of compressor housing all fully smoothed and polished then external polish. Will give it greater flow and less lag. Hope this helps
Best bet I would say is keep a look out on here for a starlet, at least you know if it's someone on here you will be able to get all the info you need and you will know their trusted. Just gotta wait for the right one mate