For mods.. It depends on wat ur going for.. do u want to go a lil faster, nicer ride? Sound system?
The mods on my car are :Tint ($100), short shifter ($35), pioneer speakers ($120), clear front bumper lights ($15 used), white underglow($60), short ram intake ($50). i got my stuff cheap because my buddy works at bestbuy. All 99 2.3 have the bose sound systems in it, so u might not wnna change anything in that dept.
My next mod will be lowering spring from H&R they only drop the car about 1". They reduce body roll without affecting normal driving conditions much.
Also i want a new header, and new cat back system. Im not going to make the car much faster, but it makes me feel better knowing i tried.
Oh and about that sevice light, u can turn it off by inserting your key in the gauge cluster area. the funny looking slot.