Originally Posted by henryyxyu
So lets say my warranty is about to expire after about 3.5 years and I decided to get a Dinan package, does my warranty get extended for another 4 years / 50,000 miles?
No. Dinan only matches the factory 4/50 warranty. This applies regardless or where you are in the factory warranty coverage. However, the out-of-warranty coverage by Dinan is 2/unlimited. So, using your example of making a purchase at the 3.5 year point in the factory warranty (and assuming you're not beyond the 50k miles), Dinan would cover the remaining 6 months on the factory warranty and then revert to the 2/unlimited for the balance. Regardless of the scenario (including buying an extended warranty from BMW), Dinan will not provide warranty coverage beyond the 4/50 or the 2/unlimited.
Just for the record, I am not an employee of Dinan. However, I have been researching several Dinan mods for my car and have already inquired about warranty coverage from my local Dinan dealer. The info I shared is what was communicated to me. Please refer to the following link for more details. Good luck!