thinking of getting an 00 si from someone. The car runs well, but it has a ticking sound in it. The motor is externally stock, but it has been built a bit with 9.6/1 cr pistons, and different rods. Everything else is totally stock. I had a 95 ex with d16 in it and didn't recall it ticking this much. The seller says that it is the injectors, I am wondering if this is normal, or if it is an exhaust leak, or something else. The ticking exists at all points on the rpm range, from idle to redline. It does get a little more pronounced at higher rpms. The car is also fairly loud. It has the stock airbox, but he said he removed the resonator and that is causing the excess volume. He can put it back, and I think I will ask him to next time I see the car, to compare. I can hear the ticking over the intake noise, but I wouldnt be able to hear it with the windows down, the stereo on, or even the air conditioning up full blast. Any idea what the ticking could be? And, is it reasonable that simply removing the resonator from the stock airbox could make the car quite a bit louder than stock? Thanks a ton!