Are they a wasted of money? I have a grand prix gt and though bout getting one for it. I've hear mixed reveiws and I wanna hear What you guys have hear and done.
Here's one I was thinkin bout getting.
http://item.mobileweb.ebay.com/viewi...id=58507084471
How much power would it give me?
Any other suport mods I need?
Would.my car still be reliable?