Also it would be a good idea to replace vacuum hoses and clean the egr and bpt solenoid.I saw a noticeable difference once it was clean in gas mileage.clean mafia and iacv as well.do this with a tune up and the car will run smoother.
Originally Posted by Cyrus Sweet little b14. Welcome to the forum. Most of us here have owned multiples of every chassis that the fwd sr20 engine comes in. At least I have. We have been around the block with these cars. I am personally on my second b14. They are a lot of fun! Your son has a car that can last him a long time if he properly takes car of it, and mods it with quality parts. As soon as he gets out of highschool and decides he wants another car- OFF TO THE TRACK! (not the drag kind either)
If you have any questions and dont feel like searching (or your son) which is what we preach here, just PM me and i can try and help you out.