Does this really make a noticeable differiance in performance ??? Does this increase or decrease fuel mileage??
1610218
You will definitely notice performance but I trul don't care about mileage mine is same with or without the tuner
1610219
the only way you'll notice big differenceis in performance mode though you have to run 91 or above octane and you will see you at 1 mile per gallon increase with better performanceI haven't used the towing mode but both 87 octane and the fuel mile saver I haven't noticed any difference I bought this mainly to turn off the Active Fuel Management System which it does perfectly
1610220
The performance is amazing in my truck a Duramax diesel, it keeps making power the more you push on the pedal! I keep mine on the performance setting and I love to feel it and hear it when I take off so it hasn't helped my fuel mileage, but I think it would if you drive normal.
1610221
I have noticed a couple mpg difference(+) it does tow better and if for some reason you want to use the performance it does make a differenceI would like to try other models just to see
1413290
even with the fuel saver program that comes w/ this unit, I noticed an increase in power/throttle response/overall driving. I have used all programs that come on this and if you have the ability, try the 93 octane program, and BOOM! You will never look at the truck again. A word of note, dont get change the tire size. I did, and even w/ the milage saver, it wasnt that impressive on saving gas, maybe 1+ mpg
35877
I purchased this device once before in hopes of adding torque. It doesn't add torque or even increase the mpg on your vehicle. It does however, make a cool noise when you step on the gas. But there is also an annoying whistle sound when you're just driving around. So again, no actual benefits except for "performance sounds". I hope this response provides clarity in your decision.
568917
It does increase the overall performance of the engine. It makes it run much smoother,you can almost hear the difference. As to the gas mileage,it does make a small difference or increase the mileage. Hope this answers your question. I have a 97 pickup and notice a small increase in the gas mileage.
1185281
yeah i noticed driving over 67 mph my gas mileage got better. increasing rpm's gives it a nice acceleration which allows smoother shifting.
31190
No difference at all.. But it did solve my problem of rough idle and engine misfire..
664756
Gas mileage didn't really change but it does seem to have more power. More in throttle response than anything.
1413291
If you have increased Tire size it will also take away some Torque, but yes, this will most certainly increase performance. Remember to reset it back to towing mode if you are towing it also has a performance mode, plus a fuel economy mode, i do like mine it does make a difference also a K&N; cold air intake will help improve your performance as well.
1754206
Anytime you increase horsepower in an engine you stand to abuse the tranny, rear-end, and tires along with everything else in the suspension. It really depends on your personal driving habits. If it's a Ford 7.3 you're driving, I saw a terrific increase in power with my 96 F350 with the 100 HP kick. A WHOLE LOT OF FUN. Would have liked to have seen better mileage but only have a single 4 inch exhaust out. My drive habits did not see an increase in mileage if not lost some. A friend of mine drives a 2001 or 2 Ford Exabition with this programmer and has increased his mileage 20-25%.
2154220
I noticed no difference in mpg or any hp changes. The old exhaust tip just was way to ugly for me. However the new exhaust tip looks so much better and gets the look I wanted!
1751434
Mpg won't really increase to make a huge difference. My silverado went up by maybe .5 mpg that's it.
2162990
yes.. it made a 2.5 mile per gallon difference when pulling (5000 lb trailer) saw some increace when not pulling 0.5-1.0 mpg. I also used a high flow air filter with it..
1788839
It will give a gain in power to help with towing you may see an increase in mpg as long as driving style stays the same it dose have a programs from towing on it or like me a cold air intake and from what I can tell is it has helped with going up will not shifting as much and still getting 19 unloaded and about 15 with the bed full of wood
1669960
Yes, you will notice a benefit in fuel mileage and a small benefit in performance. I've used K&N; filters on every car I've owned for the last 20 yrs! You can't beat the price on Amazon for a drop-in filter.
1429858
There is no horsepower gain if you just add an air intake. You will feel a much better throttle response and I did gain about 0.7 mpg. Very easy to install, highly recommended!
2044931
No difference in mine. Unless you were really in need of a change or you had some burnt oil this shouldn't have had any noticeable affect.
163513
I could see no noticeable MPG change when using this box. I consistently take 400 mile trips and have done so with and without the box. MPG seem to stay within my avg total over several trips.