Hi guys i just bought a Honda civic SI 2008 and i want to upgrade it mostly for horsepower so i need some advise on what i should buy, i dont know much on that subject, any help would be appreciated thanks

It all depends on how much power you want to make and more importanly, how much money you want to spend. Best place to start would be to get a aftermarket intake, header and exhaust system, all ofwhich are simple bolt-ons.

doesn't the new Si already have a good exhaust system? i think you should turbo it.

http://www.ct-engineering.com/

Comptech Engineering, under a new name, Now only the machine shop uses the Comptech name.

Intake, turbo, fuel system, nitrous, flow-thru cat, and catback. Then get it tuned.

I'd really work on suspension, brakes, and tires before radical upgrades in power though.

If you plan to auto-X, get a copy of the rules for the different classes BEFORE you start doing mods. Some mods will bump you into a class you may not want to be in.

turbo