Tom's Fuel Map Controller + TRD Racing Spark Plug

[CTScott]

Originally Posted by cfeng

VIP Auto Salon, a distributor of Tom's in Orange, Ca is offering these for $280 shipped. I'm considering picking one of these up and trying it.

Do a web search and read some of the reviews before you drop the money. It inserts between the MAF and the ECM and fools the ECM into thinking that more air is coming in, so that the ECM will feed more fuel. The problem with it only overriding that side (and not the feedback side via the O2 sensors), is that the ECM adjusts the trim accordingly, so the improvements will only be temporary, unless you routinely clear out the short term data by disconnecting the battery for a couple of minutes.