I have a 2004 Civic SIR and I have been wondering if my bolt on combo makes the amount of power it's supposed to or if other combos work better. I have 178 hp and 150 ft lbs with hyper voltage and ground systems, greddy Evo 2 exaust, Greddy e-manage system, injen cold air, heat sheild, and an alpha werks header with tuning. Anyone have anything they would have done different or something I should get to go with what I have. Let me know what your using, what works best for you and everyone else wondering what they should do.