Whats up fellas? I have the urge for a little more power and was wondering if I could stack somthing with my Bully Dog Extreme program. I have an 03 QC 4x4 with 48re Auto (Transgo & converter) Willeys Whistler and straight piped. I think everything else is stock (for now). I drive this daily and untill spring not pulling anything (even then it will only be a 4000lb boat on fairly flat ground). Thanks for any advice!

 

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waas just wondering what that Willeys Whistler was and if it makes your exhaust whistle

 

You could try Crazy Larry but I've hear it doesn't work too well on an 03.

Also you could stack a pressure box to work with your BD. Popular ones are the MP8 or Dr Performance. I have a Quadzilla X2 which is great cuz it comes with a rail pressure gauge which is great since a rail gauge is a MUST have anytime you increase rail pressure.

Here's a write up the the *****'s Whistler:
http://wiki.dieseltruckresource.com/...lys_Air_Intake

 

Thanks for the reply's. The *****'s Whistler is an air intake that whistles loud. Sounds like a jet engine spooling up for take off! It sounds sweet! The sound dosen't come through the exhaust but from the intake it's self.

I will look into a pressure box. What are the pros and cons to stacking it with the BD and how much pressure is too much pressure. Also my fuel system is stock is it going to support the stack?

 

As long as you have a fuel pressure gauge to make sure your lift pump is okay, and a rail gauge after you add pressure you'll be okay.
26K or something is max rail pressure I think, I've only had my X2 maxxed out once and that was on the dyno. Don't addd pressure all the time, it's hard on your injectors.
Also before adding the stack make sure you have some upgraded fuel filters, 2 micron is best.