Welcome! injestors aren't neccesary until NOS or forced induction is added. the magnecor wires arethe best IMHO and according to se-r.net. they're not really an add-on for hp, but look good and help with starting the car smoothly. hotshot probably hasthe best deal for headers. they have good customer service and aren't as pricey as stillen (thus the- $tillen -nickname). courtesy nissan was having a sale on UR pulleys ($240 and free belts, i think). what kind of intake and exhaust do you have?
stiletto
99 Sentra SEL platinum gold w/ HS headers and CAI, custom b-pipe, arospeed exhaust, magnecor 8.5mm wires, eibach pro-kit, courtesy nissan frt and rear STB, smc short shifter, greddy knob, jwt clutch, k&n crankcase breather, 17 deg. timing, clear corners and taillights and not a single stock bulb.