Has anyone installed XCal II with stock intake/exhaust and then added AF1 and Magnaflow afterwards? Is difference in performance worth adding mods. prior to installing XCal II in stock configuration?

 

Ray,
I wouldn't go that route. They (who ever you buy your Xcal2 from) will setup your tunes according to the modification's you have.
You'll get a lot more performance out of your truck.
Just with my Roush offroad exhaust and Volant cold air induction kit, I can feel the difference in throttle response.
Can't wait to get a Xcal2.

 

Will refrase question: I have a 2006 KR in complete stock configuration. Just ordered XCal2 from Troyer. Do daily driving and tow 3,500 lb. flats boat. Will the addition of AF1 and Magnaflow increase performance significally enough to warrant expense?

 

Best thing to do is call Mike or Marc.I'm sure they have the numbers for the aprox.whp and torque increases to expect, to help make up your mind.

 

I think it will. I notice a difference with my Roush exhaust and Volant CAI.

 

but remember, the point of the custom tune is to maximize output and efficiency. Troyer is tuning your truck based on stock intake and exhaust, so if you get a tune and THEn add exhaust and intake they won't add as much power as if you get the exhaust + intake and THEN the tune.

 

I would make the changes and call them to change the tunes before shipped out the first time.do a search people are happy with their results.

 

You need to do the intake first, then your tune will be setup for the intake, if it is an AF1 or Airaid. Exhaust makes no difference in your custom tune. This is how I remember it, if not, someone will be around to correct me here...

 

I just sent my paperwork in for custom tunes and I was told that both intake and exhaust affect the custom tune.

 

Hi Ray,

Yes, the Air Force One and the Magnaflow exhaust are indeed well worth the expense for the added performance & a bit better fuel mileage. There is an incredible amount of restriction in the stock factory air intake tract, and the Air Force One adds the most raw power of any intake kit on the market that we have tested (and to date, we have tested virtually all of the 26 kits we know of) for the 5.4 3V F-150. Hands down, it's a no-brainer.

On the exhaust side, the factory exhaust is the best that Ford has ever done for the normally aspirated F-150, but as usual, with almost any stock factory exhaust, there is restriction that can be relieved and thus more horsepower and torque to be made by installing the Magnaflow system.

The combination of our tuning, the intake & exhaust are what comprises our Stage 1 kit, and we do it that way because those 3 parts are the best of their kind in each area, and the end result is a well-balanced package that allows the engine to breathe much better.

Now it is important to note that changing the air intake tract in the 2004 & newer 5.4 3V, and the 2005 & up 4.6 F-150 requires changes in the tuning, too - so if you have us tune the vehicle now and then add the AF1 intake kit later on, we will also need to do additional tuning changes at that time. So you might (and I don't mean to play salesman here, just trying to save you money) want to give us a call and take advantage of our special combo deal on our tuning & the AF1, for example - we can also simply add the AF1 to an existing tuning order and still get you that combo deal - or if you want to convert an existing order to the Stage 1 kit and thus get all 3 components at the least total delivered cost, we can change an existing order that way, too - whatever best suits your needs.

The main thing to remember is that changing the air intake tract requires changes in the tuning in the 5.4 3V F-150 to get proper Air/Fuel ratios - this is true of any intake kit that actually adds power to these 5.4 3V trucks. Now we can always do that later on - for example, let's say that we tuned the vehicle now, and then at some point later on you decide to pick up the Air Force One intake kit - we can email the tuning changes to you, and then you would install the AF1 and the new tuning changes at the same time.

No tuning changes are required for a cat-back exhaust system.

In terms of the additional power from the intake kit, it delivers the most power at lower rpms, right where the truck needs it - from just off-idle thru 4000 rpm is where the gains are the largest. This is due in part to the way the stock intake works, as it's very restrictive everywhere except in a very narrow 300 rpm range around the power peak, at about 4700-4800 rpm in stock trim. This is why almost no intake kit for the 5.4 3V actually increases *peak* power - instead, usually what happens is you get gains from about 4000 rpm on down to just off-idle - right where these trucks need it. Now in the case of the AF1, it adds nice power everywhere, about 10 additional HP at the peak at about 5000 rpm, but significantly larger gains at lower rpms, in some areas as much as 25 HP.

I hope this info helps a bit, & please feel free to give us a call to go over any of this in more detail, etc., we'll be happy to help!

 

Mike, thanks for the reply. You solved my concerns and I'm happy to say that AF1 has been added to my XCal2 order. The ladies in your office are great.

 

Ummm, I would say that you DO need to play salesman (or do I need to be a better customer?) because I had no idea about the combo! :o

I am DEFINATELY thinking now about adding the AF1, as I know they are great when I had one installed on my old '97 F-150.

 

I want a combo kit too but they don't offer one for me BOO-HOO-HOO!I never thought 2 less holes in a block would make life so difficult.Mike get on AF1 and tell them I am not such a patient person.

 

Hi beowolf,

Well, I try not to be a complete sales-tool, and it's a fine line to walk, admittedly, as we are in business - some people think I go overboard, some not far enough, I guess!

At any rate, the combo deal is a great way to go as it gets you the best deal on the Top 2 best bang for the buck mods on these trucks at a great price. It was actually supposed to be only for a short time, but we've extended it a bit due to popular demand - so it's still on, and a nice way to go - let us know if you want to do that by giving us a call, as that will affect your custom tuning.

 

I just got home a little late and forgot to call you guys when I was at work.:o

I was on your site last night but couldn't find a combo price for the XCal II and AF1. Nor will I ask here.

I am just glad to here the combo deal is still on. I WILL call tomorrow during your work hours. Thanks....again.

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