So I just got one for a good price, and I've heard mixed reviews about these. So ht tell me what u guys think of them

 

Depends on the situation. It's kind of a ban-aid, not a real tuning solution. However, if you just have some bolt-ons and only need to move your fuel map around a little bit, it can be just fine.

I have actually used piggy-backs on supercharged NSXs with good results because all we needed to do was get the FMU close, then fine-tune it with an AFC or Neo.

If you need to do anything beyond basic fuel adjustments, its not for you.

 

oh ok. Just want to get a lil jump in power.

 

Simply installing an vafc isn't going to make you gain power.
You would need to have the car tuned using the vafc.

You are better off with a chipped ecu & dyno tune.