how often do you drive your car at 7k roms i mean literally you will spend more time (even when racing) in the 2-6k range than anywhere else... unless you drag race for a living and if you do you shouldnt have bought a cobalt.

 

why do so many people on here think that long tubes are for high rpms? everything ive ever read other than some comments on this forum says longer smaller primaries=more torque, shorter bigger primaries=more top end. also 4-2-1=more torque, 4-1=more top end. And I would call the vibrant a 4-2-1 but its not like most 4-2-1 designs, the section where there are 2 pipes is very short, but I wouldnt call it a 4-1 because it doesnt have a 4-1 collector. And Im not gonna sit here and argue about it, you can believe what i say or not, i dont care. im out.