little mods?

what are some little semi cheap mods i can do that are easy to take off if i need any warranty work done? thanx John

Lid and filter

You could also do some new MAF ends if you wanted.. just keep your stock ones. Very few dealerships will say anything if you change the exhaust.. unless you come in saying your muffler is rattling and you have a aftermarket on there. Warranty is only voided if the aftermarket part causes the problem you want fixed. If you change exaust and your wipers stop working they cant say anything.