Originally Posted by Kai
I think you're confusing the 100ish horsepower D15B7 with the 70ish horsepower D15B8.
That aside, B18B. The D15B will never have the potential of a B18B.
he is referring to the JDM D15B (no last digit on the code)
it is a 130hp sohc vtec, has a slightly shorter stroke (hence the 1.5L), and slightly higher compression (hence the +3hp) than the d16z6
but regardless, if you have the money, swap in the b18b and boost it.