I'm completely disappointed with Mugen's support!
Contacted Mugen asking about the recent change in the MGT7 eco motor mounts. In the first version, Mugen re-used the same motor mount employed in MBX7 buggy (E2122A/B). As an offroad car, pinions smaller than 18T are more than enough since they usually relies on torque instead of final speed. However, it seems they woke up and redesigned the part in MBX7T (E2141A/B). The new part has a bigger clearance area for the screws and, now, will accept bigger pinions. They even updated the MGT7's manual with the new motor mount. The problem is that previous owners now will have to buy this new motor mount (~50 USD or 10% or the kit retail price) if they want to use pinions bigger than 18T. According to Mugen, it was not a design flaw -- of course, they would never know an onroad car would need more final speed. Yes, I'm being sarcastic here. The reply I've got was arrogant. The representative just said Mugen knows what's best for their cars they design and MGT7 would not need pinions bigger than 18T (so, why do they updated the car???)