Tell the world a little bit about your vehicle
When the STS first hit the scene with the 4.6 Northstar engine, it was the fastest in its class by a large margin. The STS still holds its own, but the competition has certainly gotten stiff. The car has lots of power, drives great and gets decent HWY MPG (25-27). Good news/Bad news: Its alot of car for your used car dollar/Its value has dropped like a rock.
Engine/Drivetrain Modifications:
-Gutted air box
-K&N
-Magnaflow mufflers