Originally Posted by usnavyad
get rid of the superchip cost you money in long run never heard of bb fuel mod but you def can do tymar intake with zoodad and be good to go more air will not harm the 7.3l, but if you are doing more id say do exhaust as well at least take the muffler off. More air in but less out hmmmm you see what im saying also it would be smart to invest in gauges with that tuner id be scared to have superchips on my truck
1) How will the superchip cost him in the long run?? The LONG run? The truck has 400k miles on it and had the superchip its whole life, sure seems like the superchips tuner did pretty damn well, don't ya think?
2) the BB mod increases the closing force of the fuel pressure regulator. A 400k mile truck probably has a weak spring, however, it most likely has a weak fuel pump as well. If you do the BB mod, be prepared to do the fuel pump mod (i.e. replace the fuel pump)
3) The stock intake and exhaust have quite a bit of flow stock. Its only when we are constantly towing heavy loads or increasing horsepower via fuel and timing (a new tuner) that we see considerable gains. You're fooling yourself if you think you can feel the difference in normal daily driving. Its louder... sure, but louder doesnt equal more power. As is, i would NOT zoodad, tymar, nor replace the exhaust unless you plan on running more aggressive tuning. I would not recommend more aggressive tuning on a 400k mile truck. You will not see an increase in fuel mileage and you may actually lose power.
4) The only thing i do agree with is gauges. They cant hurt. Gauges first, check EGT and boost. If EGTs are high, then and only then mess with the intake and exhaust. if boost is low, check for leaks and uppipes.
5) I'd be scared to have you drive my truck
So to the original poster, take these opinions with a huge grain of salt, especially Shawn's. This forum is full of regurgitated "facts" that have nothing to back them up. You have a strong, reliable truck. Leave it that way.
Your job is to make sure the truck is healthy first - Check fuel pressure, make sure there are no codes, check for boost leaks, check for a clogged exhaust sensor. Check your brakes for proper functionality. Beyond that, dont touch a thing unless you are ready to RAPIDLY decrease your reliability.