Many people opt to buy the Mega with the intention to upgrade it to a 3S BLX car not knowing that it’s more than the electronics that differ between the two. It’s not as simple as just buying a replacement motor and ESC and calling it done.

The motor shaft size is different and even the pitch of the gears isn’t the same. The power module is very different.

Breaking down the differences between the Mega lineup and the 3S BLX cars and pricing each component so you know how much you’d be spending. Using Arrma parts comes out to roughly $200 minimum. The slipper can be purchased separately from the entire assembly, meaning you can reuse the slipper clutch. However, you’ll need to buy more slipper clutch pads as the BLX has more pads than the Mega version.

SALE:
As of this publication, Horizon Hobby currently having a sale on the 3S Typhon for $300.
Tower Hobbies still has the Mega as a scratch and dent (meaning european charger) for $150. This is not a sponsored channel and I do not use affiliate links. If interested, buy from whatever retailer you wish.

NOTE:
I made a mistake with how I installed the center bearing. The center bearing is supposed to slip over the REAR side of the enter driveshaft and slid down to the center. In the video, I'm erroneously showing it going on the FRONT side of the center driveshaft and sliding it up.