I have a 3 year 36,000 mile warranty on my 98 SSEi since i bought it used. What do dealers consider voiding my warranty. Putting in a normal K&N filter in the airbox should be fine but what else can I do without voiding the warranty I have.

That'* gonna vary alot. I'd check with the dealer on that. I can tell you to stay away from the SC pulley and chip, but then again, those are fairly easy to swap back if you need service......and the pulley may not be noticed. A couple guys here have had to swap out their custom intakes for the stock airbox before warranty work, too.

Like I said, it'* hard to say without reading the terms of the warranty. Don't just take someone'* word for it, have them show you.