12v mode does not have a good power band, but economy is superb.
mid to high range torque is very good. once you hit 16v, it revs nice enough!
IACV should be cleaned after regular intervals.
Runs great on petrol and CNG.
Petrol mixed with HOBC keeps the performance upto mark.
Some people have problems with idle once AC is turned on. After massive trial and error, and $$$'s spent, i solved this.
Nice machine for daily drive, power + Economy+ Reliability. I'd give it two thumbs up.
B16a is a different league, and i somewhat was regretting this swap uptil a month back. While the D15b intends to smell, the B16a snorts Gas (metaphor).