I went to my JDM motor supplier yesterday for a JDB D15B vtec and they have approx. 10 of them. ONly 1 is a manual transmission motor, the rest are automatics. My question is whether or not there are differences between the two motors as far as camshaft profile, compression ratio, etc. The motor attached the the 5-spd. looks a bit rough and has a broken TPS, there are a couple of auto motors that look brand new. I've heard with B16 that they can be different, Is there a difference in the D's?