Well, I kinda expected this to happen, but I don't really know the best way to get around/through it. Any proven help would be greatly appreciated.

Bought my 02 last year. Previously owned by a member on here who installed a cat-back and a Sniper tune. Since I've had it, I installed a JLT intake, and long tube headers. I am not running any cats on the truck, but all the O2 sensors are "in" (primaries are in the header collectors, and secondaries are in the bungs that I had welded into the midpipes). My official emissions testing date is Oct. 31, but I brought it in early for giggles, and to give myself more time if I didn't pass. The test came back as "'Rejected" (not "failed", but can result in the same revocation of registration after enough unsuccessful attempts). 20150729_183532.jpg
I was planning on buying an SCT tuner anyhow, possibly from Lethal Performance, and having one or two custom tunes added in with the canned tunes. One tune for "passing emissions" and one tune performance geared particularly to my mods. My question is, does anyone have any experience with any custom tuners that can make a tune so that all my systems register as "on" but I can still pass emissions? I don't want to put cats on it, but if it's necessary I guess I'd do it. I know of guys running straight exhausts with MIL elims on their mustangs and they pass no problem. My truck doesn't throw any codes and I don't have any check engine lights on currently, and the emissions testing around Chicago do not do any sniff tests, visual inspections or tire-rolling tests, so this should just be a matter of temporarily tricking the computer. Any one have any suggestions or have been through something similar? Help would be greatly appreciated.