yep thats right........i wanna turn my 1.8........turbo charged....was browsing this topic a few years back and found a guy in HI in of all places that had a custom set up and it was the 4G37 i was wondering if the manifold BOV and waste gate and intercooler was all i need beside the electronics of boost controller i need some pointers on how to build the header and am i gonna need an eprom ect ect ect and should i build the header and dump like the 4G63T with a 1.8 flange. i have built a 1.8 4g37 N/A header from a 2.0 N/A header works awesome.