I think I'm going to use one. I'm going to drill it for my nitrous nozzle to clean up the installation. In that case, yes, it will make more power. If you leave out the nitrous...don't bother with the spacer. :D Worth less. You want to add somethinig that is worth it here you go URD MAF Sensor Calibrator http://www.urdusa.com/product_info.php?cPath=66_72&products_id=1260198051 This is a far better use of your money.
