Can I use a FMU instead of an expensive ECU
 

I was wondering if a FMU with the stock ecu and bigger fuel line connections for increased fuel management for additional boost, could be an alternative instead of buying an expensive aftermarket ecu. Obviously I wouldn't be getting the benefit of rev. cut or a few other option but I don't care. I will soon be installing a full exhaust and intake(s) as my only mods. I know its a cheap bastard question, but I'm only cheap if it works safely, and properly.

Thanks
:cool:

In short you can do this and people have done this, but is not recommended. When you upgrade your car you also have to tune the ignition maps, which a FMU will not do. An ecu like the Power FC is very versatile and you will never hve to replace it if you go non-sequential or single turbo.

Re: Can I use a FMU instead of an expensive ECU
 

There has been so many posts about this, and at least three last week. There is no point to a piggy-back fuel controller for the FD (other than the PFS PMC). The stock ecu runs rich enough for all of the bolt-ons at 10 psi. The problem is, you will have a difficult time controlling boost to 10 psi with a midpipe, so don't put one on.

As I've said many times before, if you can't afford to mod the car properly, then don't do it. At the least, spend the $400 for a used Pettit ecu, so at least you will have the fuel delivery if your boost creeps up to 13-14 psi.