How to tell if you are chipped? - Ford Powerstroke Diesel Forum
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Old 10-13-2009, 05:58 PM Fanatic

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How to tell if you are chipped?

Hello all, new to the forum and to Turbo Diesels. Just bought an 03 F250 with the 7.3. Love the truck so far. Bought it from a used car lot so not really sure what all has been done to it. Looks like it has a 4" Flowmaster exhaust from the turbo back. Also has a relatively small airbox with a green filter. I'm assuming that's an aftermarket intake. Is there an easy way to tell if the truck has any kind of aftermarket tuning or a chip?? Also does anyone have an idea what kind of intake I might have? How good is the Flowmaster exhaust? I love the way it sounds...

Thank you..
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Old 10-14-2009, 02:43 AM
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Well, first off, welcome to the ORG.

An '03 w/ 7.3L Pat yourself on the back for that one. That's probably about as good as it's gonna get. Newest truck possible with the best engine possible. (in my opinion)

As for the exhaust, it should be just fine. 4" will give you all the performance you need. Anything bigger is really just for sound.

As for the intake. I believe you have an intake from Green filter USA. Here's a link to their website.

As for it's performance. Well, it's tough to say. Personally, I'd ditch it as it's an oiled filter. If you keep it imaculately clean, it'll be fine, but if it gets dirty, it's a lot more likely to allow particulate through, and dust your motor. My recomendation would be to go with a DIY intake. They're not quite as "pretty", but it'll provide just as much air, if not more, than the one that's on your truck now. Here are a couple links to DIY intake threads.

DIY Intake


And as for finding out if you're truck is chipped, I think you'd have to open up the computer to see, unless it had an adjustable chip, in which case there'd be a little knob somewhere nearby the driver seat. (to be adjustable on the fly)

Hope all this helps.

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