looking to upgrade the handling on my HHR 2006 Spring ed. I would like some suggestions. I have alrady upgraded the front brakes to EBC rotors, a Magnaflo cat back exhaust, a jet mass air flow sensor and a K&N air filter. I am thinking of getting a jet chip for computer as well.

 

to the forum!

Sounds like you've already got a good start on your mods. HHR's and performance "chips" aren't a good mix, check out our Search function for "Trifecta Tune", and give those threads a read.