I would tell him to go with the ZC swap. He can get the motor itself for about $500 and either bolt up his tranny or get a Si one and also get the 89 Integra ECU. The DX motor is just way to slow with the "fake" intake manifold it has. Just tell him to save up the money and swap a ZC like i said and he will be way happier with that than the D15B2.
