Understanding the OP is Canadian and Magnuson-Moss therefore doesn't apply, but the significance of Magnusson-Moss to the aftermarket industry is largely misinterpreted. Magnuson-Moss does not protect altering the fundamentals of a vehicle (ride height, suspension & steering geometry, electronic programming, etc) without potentially sacrificing warranty coverage. Instead Magnuson-Moss protects the right to buy aftermarket replacement parts. The manufacturer cannot require the purchaser to buy parts and service only through from them to maintain warranty - your warranty can't be voided because you used a Wix filter or Duralast battery instead of buying Motorcraft (ACDelco, Subaru, etc.). Dealers & manufacturers do not routinely void the entire bumper-to-bumper coverage for a major modification (such as a lift), but the mod can affect coverage on more components than expected. Some dealers are more lenient than others, and some denials can be reversed through the courts. The manufacturer sets the warranty terms, and their dealer is generally the enforcement agency.
Finding and establishing a relationship with a mod-friendly dealer *BEFORE* modifying your new/warrantied vehicle can make all the difference in the service and treatment you'll receive, should an issue arise during the warranty period.