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Katy Performance Chips

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


Comments about Hypertech programmer for 2011 Ford Expedition

Reviewed By Brian H (Brighton, MI) —5/3/2015 11:45 AM

The directions lack detail about when and when not to connect the programmer to the computer for updates and or trouble shooting. Causes many DEC's when programming the car but none seem to effect the download to the car. The car seems to run smoother. Overall a decent buy.

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SCT iTSX Wireless OBD-II Interface (49-State Legal) Reviews


Will it blend?

Reviewed By John e. B (LA GRANGE, IL) —5/3/2015 5:42 AM

The down and dirty: Yep, got a nice 93 octane tune. The iPhone interface to do this is slick and I would not say slow But: After a few days the module you get that plugs into the OBD II data prt died. It flickers as if it will startup, then dies So: I am very pleased with the tune. The power increase is noticeable and the shift points aren't ramped up to obnoxious levels. i have not given cust supporter a chance to rectify.

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Range Active Fuel Management Disable Device Reviews


Makes your truck run like it should

Reviewed By Paul H (POWELL, WY) —5/2/2015 6:14 PM

I wish I had thought of this device. As a 38 year veteran mechanic for GM, I am not a fan of active fuel management. It causes surging, oil consumption and ultimately, early required engine repair. My '09 GMC runs smooth and quiet with excellent throttle response. Towing now is effortless. I haven't tracked the fuel economy for very long but it seems to be better. I shall have to track on the next long trip. Tired of herky-jerky and droning at 45 mph? try this product, I'm sure you will like it

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