I have a 90 four door civic with 379,354 it leaks oil and transmission fluid . the seats are riped , it smoke oil ALOT the cv axles are poping the truck as a lot of rust the muffler drags the ground but I was think about installing a load muffler a cold air intake installing boch paltinum four in in the engine some big fat wires some neon lights. I think after that it could run a high 9 second quarter mile