Originally Posted by Dmax Dually
From Fass FAQ page:
Does Fass void factory manufacturers warranty?
No, FASS does not void factory manufacturer warranties because our products meet their filter specifications.
FASS most def voids warranty. Now depending on the dealership you go to and how familiar they are with diesels, they may let you slide.
FASS can and never will be able to dictate what will or will not void a manufacturers warranty. At least until they form a partnership with GM.
There would be a ton warranty work if FASS did not void the warranty.
2011 White LML CCSB Z71 4x4, Dan's Diesel CP3, Dan's Diesel down pipe, PPEI 2" up pipes, HSP Y Bridge, Fass 165 LP w/ Dan's Diesel sump