Not sure which 2006 Chevy HHR Performance Chips & Programmers are right for you? We have over 7429 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"The module plugs into position 2 on the ECM.
Position 3 is the exact same connector. Be careful.
My car had an IMCO 2.5 inch muffler and a K & N intake.
It really made a difference in power and noise.
The car is much more responsive and fun to drive.
The exhaust was louder but all the hills got smaller.
It just feels good. Mileage did not change yet. (27 +/-)
It has not been above 30 degrees for 2 weeks.
I am sure mileage will get better when it gets warmer.
It was well worth the investment.
Sam, Brighton, Colorado" —Sam S E from Brighton, CO bought a Jet Performance Module for a 2006 Chevy HHR, Automatic, 2.4L 4-cyl. engine.