just bought this 07 has 63k miles on it and lets just say performance is lacking. What mods would be worth putting into this. I figure more air in and more air out to start with but where to start. I am not looking to make this thing fast just a little more fun to drive.

 

We've had our HHR for about 2 1/2 years now and have thrown a "TON" of money into performance mods for our un-impressive 2.4! If you want your Best "Bang-for-your-Buck" mod go for the Trifecta Tune! You will get minimal Horse Power and Torque gains but the settings there program offers makes your HHR come to life! Here's our thoughts in a nutshell "Best-O-Luck" .....

https://www.chevyhhr.net/forums/2-4l-performance-tech-14/product-review-trifecta-tune-26691/

 

what kind of pricing is the tune? and what other mods are still on yours? or where there when you put the tune in?

 

I think the Tune is in the $250.00 range! We pretty much did the basic mods such as a CGS Cold Air Intake (some call it a Hot Air, haha), Jet Performance MAS and complete exhaust system from Header, Single High Flow Cat DP, Magna Flow Cat Back Exhaust with it "ALL" Ceramic Coated end-2-end! The tune was were you get your most benefits!!!!!

Here's the Tune Site: http://chevyhhrworld.com/