Hi i am new to ozhonda but have had my S2K since late 2006.
I recently bought a greddy turbo kit from the US.
I got it installed and the turbo part works prefectly fine but i am getting no power in the VTEC band. Basically i am driving around with turbo boost till about 5500 -6000rpm and then when the vtec should come strong i am getting no power. I dynoed my car before turbo kit and i got 144.6kw on the rear wheels. After turbo kit installed i got 154.3. The dyno guy said it was pinging in the range where the vtec should come strong.

I was wondering if the possible issues is the stock ecu as different to the US ecu?

or the e-manage ultimate which maybe tuned to the US ecu?

I was hoping for some helpful info before i actually go get the e-manage tuned.