Ok new guy same old question I have a 04 f150 stx 4.6 2wd. I have the Gotts mod and a Borla catback system. I would like advice on the best tuner . I am looking for better performance and shifting but like everyone else i dont want my gas mileage to suffer. Is that possible or should I just leave my truck alone.Also is eliminating the rear cats and doing the Gotts o2 sensor mod worth it? thx

 

A programmer is the single best mod you can do. I started with the Edge, then got the Gryphon custom tunes. Custom is the best way to go. On your 4.6, will add about 20 hp and much better shifting, downshifting. I got slightly better mpg with the tune.


BTW, this is on my 2005 5.4 with the Gotts mod and exhaust.

 

With regards to “Chips” and “Tuners”, years ago it was the best that most could do to enhance the ignition timing, fuel curve, transmission shift points, etc. It was (and still is) very important that a person verifies that the “Tuner” is ASE certified in both ECM and Transmission programming and IMHO be have current certification by the OEM whose vehicle you want to modify. There are plenty of persons who advertise their programs to be the best and even offer custom tunes, but in all reality, very few actually have credentials in these areas- but that’s not to say that some of these “geniuses” haven’t really caused damage to a few vehicles- just jump over to flatratetech.com and read just some of the comments from the MSE techs!. Perhaps what is equally important is the parameters that can be adjusted are set by the OEM vehicle software…so there is really no “magic” in what they are doing anyway.

IMHO, if you live near any major city there are excellent tuning specialists with dynos who for the same price (if not less) will tune your vehicle taking into consideration your specific needs including environmental conditions, for your specific vehicle. IMHO, the best bang for the buck!

 

Your foot has the largest impact on mileage, but a tune will also help when used correctly.

 

hey bluejay what kinda mileage are you getting on the 05' with 5.4?? I am getting around 19.8 the last i checked just added the saleen exhaust and thinking about getting tuner??

 

mine is a king ranch 2wd only had it 2 weeks now...

 

Just put on my Borla side exit exhaust and im very happy with the sound.I dont really think it helped the performance and definitaly not the mileage since I cant seem to keep my foot out of it . Not sure if i should get read of the cats or just buy a tuner.

 

Getting rid of the cats will do absolutely nothing for you unless they are plugged. As you can see, a Borla or other aftermarket exhaust doesn't either except make more noise.

 

I'm selling a used SCT X3 if you want it. 200 and it's yours. The device still has two unlocks left and comes with the original packaging and USB cable.

 

And I agree with the guys above, the tune was by far the best upgrade for the money i've ever done. I used it on my 2006 King Ranch with the 5.4 and it really woke it up.

 

I got 19.2 on the highway before ethanol and big wheels and tires. After that, I was lucky to get 16.