Hi,

i was wondering if my engine is a stage 3 vtec not just vtec-e because i have a Civic 1.5LSi Vtec and its a HB EK3 and the engine code is D15Z6, i know it has an economic mode when i drive in third/fourth/fith below 2.5k but above that it goes into normal mode and then at 4.8k-5k then engine becomes much faster like a normal SOHC vtec. The thing is that i compare the engine with the engine D16Z6 which is a SOHC VTEC now my engine is the same but 100cc less and the bonus of VTEC-E if so my car is a hybrid VTEC or STAGE 3 vtec? i am tired of looking around for info but no luck my car has 114bhp stock can anyone help me???????????

Also i plan to modify it and have the following installed over the next month AEM v2, Nology Leads&Plugs, FSE Boost valve, Ecotek Valve, S/S Supersprint 4-2-1 mainfold + straight through exhaust + no Catalict convertor.

how Much power you think i will get with what i have mentioned and is it worth it ? Don't mention Engine swaps coz here in gibraltar that kind of stuff they don't do coz it costs the bomb, and no mechanics here are bothered + i don't have the cash.

One more thing what is my can known as in the USA as a Civic Ex,VX,CX,DX??? remeber its the nearly the same as D16Z6 but just D15Z6 100cc less so?