HorsePower per upgrade

[silver]

Originally posted by 92 civic b18c1
[b][size=3][color=blue]How much horse poer does this give me?

Lets say you have a bone stock GSR, 180hp base line.
You add a Cold Air Intake, a 4-1 DC sports header, high flow cat, and an Apex-i N1 exhaust, maybe 195hp now?[i]

don't go around flaunting that number though, it's what actually makes it to the wheels that count. and i believe the gsr bone stock is 170hp. so say that gives around 145 to the wheels, adding your parts would probably bring it up to 160 at the most on a very cool day with fresh oil and new plugs. and what size piping for the exhaust?