I'm debating whether I want to put a supercharger, turbo kit, or nitrous on my 2008 HHR 2.4L. I want to have more power while still able to maintain decent gas mileage. Most of my driving would be in the city/highway. (Maybe might take it to a track for fun one day.) Want to see what you guys did with your HHR's. Also I want to also get a new exhaust for my car. I want it to sound deep, but still street legal. I was looking at either the flow master, cat back, or magna flow. If you have any other suggestions please feel free to post them! Trying to get my HHR more fun to drive! (Especially for a 21 year old kid like me!)

Thanks!

 

This is what, the third thread you have started on the same subject?