Post by
audtatious »
https://forums.nicoclub.com/audtatious-u2438.html
Mon Feb 04, 2008 6:40 am
Pretty much it's a known as a drop-resistor mod. It's a resistor that is installed to make the computer think the intake air temp is lower or that more air is coming in than there really is. Thus it will add timing and potentially give you a few ponies. BUT, it can also cause knocking, lean/rich conditions and such which can hurt performance (among other things) as it reports the same resistance for all RPM ranges.
For $10 bux (and shipping, so 15-20 bux) you get maybe .99 cents worth of resistors (and maybe a plastic box) and a piece of paper telling you where to put them.