hey I'm a sort of a newbie I'm 18 and drive a 2000 gsr integra with an aem intake and D.C. Header I wanna do 180hp with out going into the actual engine, can this be achieved with bolt on And a tune?

 

without opening the motor that might be difficult, some ITR or skunk2 tuner1 cam would help. I hit mid 170s a few years ago with a skunk2 intake a 70mm TB, 3inch intake arm, hytech replica header and 2.5inch exhaust after being tuned with a stock gsr longblock.

 

Check out the Dyno. 160whp is what you going to get without piston and cam upgrade.
Even this guy here with a freshly rebuild B18C5 still putting down 185whp.
Figure out you budget, then go form there. Weighting in the cost of building up your engine and get it tune or buy an already build engine.