i just purchased a 95 chevy 4x4 crew cab dually 6.6 with 4l80 auto it has a 4 inch straight pipe from turbo back and a cold air intake setup im looking for any other small mods to get a little more power without harming the motor or fuel consumption ive been looking around at heath and a few others about a chip i notice they offer 2 chips one for straight performance and one for towing what is the major difference between the two? any other simple mods you can recommend that wont break the bank? im not wanting a race truck just a little more pulling power....thanks in advance dieseltow...:cool:

Welcome to posting on the forum. My suggestion is check out the stickies, search, and update your signature. What you ask can easily be found in the stickies and with the search function.