I would talk to the dealer that does your warranty work. unless the pipes are the cause of the repair, normally they won't cause the warranty to be void. like if the starter fails,it has nothing to do with the added pipes. but poor running condition may be blamed on the pipes. you will also need a high flow air filter and some sort of fuel system adjustments with those pipes. some types can be seen on the dealers computer, some can be 'undone'. Most dealerships know that these are the first changes an owner makes to their bike, and still honor the warranty,.Find out your dealers policy first.