Upping the V-10 a bit.
so I did the air intake mod to open it up to the grill, also made a block off plate that I can put back if needed.
have a k&N filter in stock box.
new fuel filter, maint, plugs, royal purple diff fluids, royal purple transfer case fluid. ect. serviced trans and used Mercon V fluid.
BMW 5w30 syn in engine. (hell this is the best oil I have came accross by far anywhere)
I plan on doing the upgraded "Y" pipe and then replacing the muffler with a flow master (i am on the fence with this one, as to what one to use)
thats it, NO lift kit, nothing just drive it and tow with it when needed.
My question is, Would a Tuner really give me anything, I have mixed reviews on gas engines and tuners, they seem to only make MPG worse and the gains are hardly noticable. I would however like to see if there was a software upgrade for the transmission????
what do you guys think
oh yeah forgot to mention
2000 F-250/ 6.8L, auto. 4 door 4x4.
let me know
Secondly If you get a tuner from 5 Star a SCT tuner I have heard they are the best mods (I personally don't have one now).
Personally we have a 02 F250 V10 Auto 4 door 4x4 and it has a chip I personally see tons more power with it (ours is a Bully dog chip)
The y pipe I would definatly do I want to do this on our truck but with an exhaust like on it (banks stinger exhaust).
I don't personally know of any software upgrades for the trans but if using it for towing I would upgrade the tran's cooler and add a trans temp gauge.
Hope this helps
Happy holidays,
Trav

The exhaust work might give you 2 hp but could cause a drone and the chip might mess up your MPG. All else is a waste of time also.
Intake, exhaust, and tunes are largely going to do nothing with the stock cam, compression and heads.
Doing things in front of or behind the motor doesn't accomplish much.
But what WILL provide an immediate boost in performance unsurpassed by any other single mod by a wide margin is GEARS. Deeper gears are easily the best thing you can do for performance. DONT FEAR THE GEAR!
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Depending on how you drive and how the truck is geared you can actually see an improvement just as easily as a decrease.
Engine load is a far more important factor in economy than 500 rpm one way or the other. If the OP drives in town a lot or has a bunch if hills or just isn't on the interstate much allowing the engine to spin more freely can at the very least not have much reduction.
It's the same reason big tires cause mileage to go in the toilet even though rpm's and total gear ratio has decreased. Besides its a v10 super duty what's the difference in 11 or 9 mpg? If the OP wants more power he's gonna burn more fuel, there's no free lunch on these trucks.
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EDIT: but i agree on gears. you're looking at more cheese, but if you don't do laot of expressway driving they're a great option.
what the tuners are doing mainly is transmission tuning. that is where all the gains are made.
"canned" tuners like Hypertech, Edge, Superchips are all inadequate tuners that don't really do much besides adjust a few variables. If you want real tuning, get a SCT handheld unit and go visit 5 Star for custom tuning. they tweak most everything to your desires.
but yeah, you aren't going to make a ton more HP/TQ. The trans adjustments though will make your truck feel more spirited. you can see better MPG's if you keep your foot out of it...but as mentioned above, it's a V-10....fuel sipper it ain't
the y pipe did make a big difference allready. I noticed a bump in fuel mileage, and what my butt feels a bit more power. all the other stuff I did is probably nothing but hey I like tinkering with my cars to some extent.
gears are not really an option for me because the truck does see some road time, mt passes and such. I would like to keep them the same. once again I was just looking to make the truck a "bit" better to drive. The trans tuning i think would give me the best feel in the truck as it has always felt a bit iffy shifting while towing.
thanks for all the replies.
Depending on how you drive and how the truck is geared you can actually see an improvement just as easily as a decrease.
Engine load is a far more important factor in economy than 500 rpm one way or the other. If the OP drives in town a lot or has a bunch if hills or just isn't on the interstate much allowing the engine to spin more freely can at the very least not have much reduction.
It's the same reason big tires cause mileage to go in the toilet even though rpm's and total gear ratio has decreased. Besides its a v10 super duty what's the difference in 11 or 9 mpg? If the OP wants more power he's gonna burn more fuel, there's no free lunch on these trucks.
Which as we all know is not the case. That's because even though the rpm went down engine load went up










