I have a Integra Ls OBD1 PR4 ecu that was chipped tuned by JET in MARCH of this year and it will definently let you feel the difference in power and a garunteed 10 hp gain the least at most 25hp! and the ecu is on warranty has lable on it that says so too. im selling for $200 shipped! I also have 1999 GSR integra valvetrain which included cams,cam gears,valve springs, and retainers all in excellent condition gret upgrade for Si vtec owners and perfect replacement for GSR owners. selling for 130 Shipped! I need a P75 OBD1 LS ecu so i will trade for pr4 and some cash aswell.