I just bought a 2010 SS with the following mods:

Long Tube Headers with High Flow Cats
Flow Master Cat Back exhaust system
180 degree Thermostat
Varam Ram air Cold air intake
Custom Stripes
Phillips 6500 kelvin HID bulbs
High performance Plugs, Wires and Heat boots
Clear Vinyl paint protector on front hood all of front bumper, mirrors roof, door handles rear trunk bumper etc
Carbon window tint which is the Best money can buy
Custom tune with a Trinity full Programmer.
2 Alpine DVC 10" subs with custom boxes running off a Punch 1000 watt amp.

Advise and thoughts on where I should spend my money next? FYI - I'm interested in more hp....

 

Heads, cam