Not sure which 2009 Chevy Impala Performance Chips & Programmers are right for you? We have over 546 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Ken P from Harrison, OH said, "I bought this to improve performance and mpg. Happy with both. 1 to 2 MPG increase and plenty of power. Never thought my 03 F150 4.2 had this kind of power. Running premium setting. Great product."
Year Range For Chevy Impala Performance Chips & Programmers