GL 550 vs GL 63
:-)








The 63 has fantastic performance, but that's useless to me if the car is uncomfortable to drive. In other words, I ended up with a 550.
Go test both and pick the one you like the best.
The Best of Mercedes & AMG
63 = 5,461 cc (333 cu in) 32V V8 biturbo Mercedes-Benz M 157 DE 55 AL
With money, you can do anything to either motor!
Truth or fiction???
I'd love to hear more about the GL550 tune. My warranty runs out this Xmas.
Thanks
Bob
If you simply want occasionally more power and don't want to go the AMG route with all the maintenance expenses of owning a true sports vehicle, you could always compromise by simply buying the 550 and then buy intermediate tune. Something that stays within the parameters of what the engine and transmission can handle. It obviously won't be equal to an AMG, but it will be a lot more power than the 550 stock.
You can flash it to stock map and they can still rejected it because if you do any forensics on the ECU you will see that it was tuned.
There are numerous M157 engines that are tuned and haven't heard of any horror stories. Only those that have swapped turbos.







