
Originally Posted by
arwayeyen
Yes and No.
From Speedlab's FAQ
Q: Will this void my warranty?
A: To be strict about it, if you read Toyota's warranty policy ANY MODIFICATIONS voids your warranty. Since most likely you already have wheels, HIDs, sounds, etc etc, consider your warranty voided. Practically speaking, these mods will not cause your engine to blow up.
Q: What's the warranty?
A: K&N has a 1,000,000 mile warranty (yes that's one million), Devil's Own and Unichip carries the usual one year warranty against factory defects.
From K&N's FAQ (USA)
9. Will installing a K&N performance intake system void my factory warranty?
Most K&N air intake systems are warranted for 1,000,000 miles which exceeds the warranty offered on the original factory intake system.
The installation of an air intake system should not void your factory warranty. It is never a bad idea to contact your local dealership and ask them before purchasing the new K&N system whether they will object. If they tell you an air intake system will void your vehicle warranty, please contact us and we will speak with the dealership directly to clear up the misunderstanding. Another idea would be to contact a different dealer who may have a different policy since many dealerships actually sell K&N intake systems.
As an additional level of comfort, we also offer our Consumer Protection Pledge. It takes customer service to an even higher level by giving you confidence that when you buy K&N you get on-going support from a team of professionals who will talk directly to dealerships to resolve any questions that may come up.