I have the NO Progressive and it does not adjust timing or fuel. To adjust the fuel you change jets. And to adjust timing you can reflash the PCM, use the IAT resister mod, EFIL COS or the LNC-002(or similar timing box).
The progressive does have a built in electronic TPS, window switch, progressive nitrous ramp and gear lockout though which are very helpful if you have traction problems.
2005 Dodge Ram 2500 RCSB Thunder Road Hemi Sport w/STS Turbo
2004 Dodge Ram SRT-10 - Silver - Stock
2003 Chevy 1500 RCSB Stepside 400SS - 408 in now awaiting Turbo