chevy cobalt ls 07 2.2

[604cobalt]

i wanna make my car even louder then it allready is, ill post what i have in and have taken out, but im looking for an in-expensive way to make it even louder.

-air restrictor is out
-resinator is out
-magnaflow muffler in.

now ive been looking into a high flow kat.
but around here im looking upwards to 300 bucks installed,
anything else besides what i have done that will make it louder.

thanks guys.

 

[Spacey_stacey75]

bigger pipe!! and a air intake, more air in means more air out.