E-450 performance chip

Not much time in the RV yet. First trip out got 8.7 mpg but the RV was light on weight. Reading the testimonials on the 5 star said fuel range was greatly improved. I asked some specific questions on what that was. The customer did not qualify the vehicle, but said fuel range on a tank was increased from 600 to 900 miles. This is NOT a MH, not sure what it is. So I asked, we'll see what "Mike" will come back with. MH reader choice award? A lot of people in the MH world are promoting the ripoff chips, we'll see.

I have not changed or programed chip yet.= in my E450.
On a sports car a few years back there was a big difference.

All OEMs are a compromise so they will work in all conditions.

From what I can find 5Star Tune does it best.
They need the info for your vehicle an you tell them what you
are looking for. Most people say the biggest improvement is
in the shift patterns.

If you are looking for more MPG I am really doubtful, that with the weight the E450 has to handle, that you will get into the double digits in most cases.

Skip that chip. All it does is modify the intake air temp signal to trick it into running rich. This may not even add more power, and it will worsen fuel economy and emissions.

If you want more power, 5-star tuning has a good tuner. Its quite a bit more expensive however. And yes, the V10 does have more power on tap.

All good points. While not a gear head myself, I worked with a group of aircraft mechanics and know from my avionics background that OEM ECMs are not programmed for max performance, they are programmed to comply with federal EPA guidelines which are not designed for max performance or min pollution to the air. OEM ECM programming I think will be the next search.

One thing for sure, I got lazy and did not dig enough into this one chip, it is a rip off.

Thanks!

A gas engine is generally running as optimum as the hardware allows. Many of the chips require premium fuel to get their gains, increasing cost.

You would be better off making intake/exhaust upgrades, a good air filter and headers makes a big difference on flow and economy. My dads 97 454 picked up about 1.5 mpgs from those mods, that's 15%.

google and read the reviews on this chip. Not good

just my opinion, the auto companies tune there engines to be as effient as they can be without doing damage to the engine. chips, filters, gadgets, are all hipe.