Get an obx mani or mod a 20v mani and downpipe to fit. full 2" exhaust, anything more you will lose mid range power. Throttle bodies Advance your timing (makes a massive difference) Fuel pressure reg to compliment the ITB's. You will need to run fairly rich down low to support the extra air up top. 6 speed gear box. Lightened fly and clutch Remove power steering and aircon. Fit 5efhe cams. I had the above minus lightened flywheel, 6 speed and cams. They where next on my list and the car was already stupid quick for a 1.3 n/a! I beat a gt turbo running 0.8bar, all standard apart from exhaust, decat and intercooler. Yours would be even faster being a 5e ;)