You think I can put a GSR ECU in my '99 Si (B16A2)? Two weeks ago I ran a CRX with a B16 swap(that's what the guy told me, but it was incredibly slow). We were bumper to bumper until his VTEC kicked in earlier than mine. Then mine kicked in (5600RPMS) and I felt like I was pulling pretty hard on him. After we ran two times, he told me he installed a GSR ECU (don't know year) and it engages at 4800 RPMs (I think).
I don't think it was B16 swap (pretty sure it was sohc vtec), unless i was spraying my invisible 100 shot or he is a shitty driver. Peace.