Flowmasters and modifications
Originally Posted by otto457
Ok not great. For the intake you'll need a custom programmer. You can install it before the programmer since you have the 4.6L. The top custom programmers are the SCT x3 or the Gryphon CS/CTS.
The custom tunable one you will want is the X3. What you're seeing on the SF3 are "canned" tunes. Canned tunes are meant for a stock truck, most modifications need to be accounted for in a custom tune. You can get custom tunes for towing and performance for various octanes. Some tuners will write and economy tune but most see little to no mileage gains over the performance tune. Generally if you're towing more than two thousand pounds a towing tune is needed as the performance tune's settings will be harder on the transmission with a load.
To get custom tunes, all you have to do is order them from a reputable company (VMP tuning, Troyer Performance, Power Hungry Performance) and they will email you the custom tunes to be downloaded. Call and talk to Justin (VMP), Mike (Troyer), or Bill (PHP) and they can and will explain everything in more depth and answer every question you could ever dream of.
There is ALWAYS a risk when flashing the PCM. Changing the tunes everyday is probably not a good idea, changing them a few times a year probably won't run into problems. Knowing how to avoid problems that trip people up when flashing and how to properly use the device will minimize risks.
To get custom tunes, all you have to do is order them from a reputable company (VMP tuning, Troyer Performance, Power Hungry Performance) and they will email you the custom tunes to be downloaded. Call and talk to Justin (VMP), Mike (Troyer), or Bill (PHP) and they can and will explain everything in more depth and answer every question you could ever dream of.
There is ALWAYS a risk when flashing the PCM. Changing the tunes everyday is probably not a good idea, changing them a few times a year probably won't run into problems. Knowing how to avoid problems that trip people up when flashing and how to properly use the device will minimize risks.
On flowmasters should I get true duals or no? I've been told that on my motor true duals don't have enough back pressure so I would actually lose power so if I go to 1 single flowmaster should I just dump it or take it out to tips in the back of the truck? I've been told you lose more power of you take it out to tips?
Single would save you some $. I would think just dumping it would only give you more sound in the truck, not power. It is just my opinion.
Think about the moisture coming out of the muffler. Do you really want that exiting the muffler right under your truck esp. if you use is as a driver too?
Think about the moisture coming out of the muffler. Do you really want that exiting the muffler right under your truck esp. if you use is as a driver too?
Last edited by '08f150stx; Mar 7, 2011 at 10:44 AM.

