I haven't seen any performance parts for the 2.5L TBI other than internals like a performance cam.
4.88 isn't really low enough for a 4banger on 35"s, I'd consider an axle swap to at least D44's so you can run at least 5.38 to keep what little performance you have.
Also check out
www.4bangerjp.com where a lot of us 4Banger owners hang out. We gotta stick together, brother
