Join Date: Mar 2010
Location: Ventura County, CA.
It'll be less restictive, and will help out a little bit power wise, but still not a lot. Unless your going to turbo or supercharge the car, the stock SS exhaust is really all you'll need. If you want more sound our do go forced induction, you'll probably want something a little bit better. I have the full SS exhaust on my LS, along with the AEM CAI, making more power is all about how fast you can air in and out of the engine.
2009 Imperial Blue Metallic Cobalt SS/TC Sedan - "Stock":
2008 Victory Red HHR SS - Stock
2005 Chili Pepper Red Ion Redline - Stock
2007 Sunburst Orange Metallic LS Coupe - Sold