I don't see what chip you are running in your sig. I have a special econ tow program in mine that is econ tow up to 2/3 throttle then transitions to perfortmance tow. EGTs run very reasonable, fuel mileage is improved over stock and power is much higher than stock./ubbthreads/images/graemlins/biggrin.gif My econ tow program dynos higher than my no load econ program. If your tow program isn't any more powerful than stock I question the quality of the programming. Towing in economy should be OK, especially if you watch your EGT.