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Bully Dog In-Line Modules

Sink your teeth into a juicy mouthful of horsepower, torque and throttle response with Bully Dog in-line modules. Like a cobra striking at a mongoose, your vehicle will launch off the line with ferocity after tuning up with a Bully Dog in-line module.
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Latest Customer Reviews

Bully Dog Performance Chip - 6 Position 4 Bank for Ford Reviews


bully dog chip

Reviewed By Kayla W (RANDOLPH, NY) Reviewed for a 2000 Ford F-350 —3/14/2013 6:43 AM

Very easy to install on my 2000 F350. Maybe took me a half hour to do so. Very recognizable power increases and throttle response. High idle position is great in the cold north east. My check engine light did come on once when playing with and swithing positions very fast. But has not come on since. Highly recommend though the dial is pretty cheaply made.

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Bully Dog Performance Chip - 6 Position 4 Bank for Ford Reviews


Get up and go 1 ton.

Reviewed By Donald W (Belgrade, MT) —2/18/2012 6:31 AM

Installed easy, alot more power and notice mpg up when I keep my foot out of it! I wish I would have got one with the monitor but this way better than stock

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Bully Dog Performance Chip - 6 Position 4 Bank for Ford Reviews


Didn't work in my truck

Reviewed By Amy B (Gray, LA) —9/28/2011 6:01 PM

I have a 2000 F250 diesel with a standard transmission. When we received the chip, we installed it according to the directions and the truck would not start. We double-checked everything. When we removed the chip, the truck started. After talking to Bully Dog support, we were told to send the chip to them to be re-flashed with the correct codes. When we got the chip back, we had the same problem. The truck would not start with the Bully Dog chip installed. We were told they could re-flash it again but chose to return the chip and get a refund. We could not get them to replace the chip.

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