Putting 170mm forks on my Allmtn 6. Any issues?

[dad_hype_ian]

Hi. I'm not a Fox Fork lover and always preferred Rockshox so looking to change to a Zeb. I can get 170mm at a good price. The Fox 38 are 160mm. Has anybody else changed their forks to 170mm and would the extra travel cause any issues or void the warranty.

Thanks