Horsepower/ Fuel economy

[papo1964]

Just purchased a 2003 Q45 there is a slight slag on acceleration. Would like to know if there is a way to eliminate this concern. Would also like to know how to increase horsepower and fuel economy with out breaking wallet. All I have found is G-Force chip. Read good & bad inputs on this product. Advise is very much appreciated.

[Q451990]

to NICO!

The 2002 had updates available to deal with acceleration lag issues - but I think all of those fixes were applied prior to the 2003 model year. I would still check with your dealership to see if there are any updates that are available for your car. They can pull all of the dealer-performed service history for your car with your VIN.

Heath