Just a little note about using a grinding wheel on aluminum. The reason why you NEVER want to cut aluminum this way is not the hardness. Aluminum is soft and "Loads" the wheel with pieces of the metal. This can cause the grinding wheel to become off balance and explode. Same goes for grinding aluminum on any grinder. You need special wheels. I have been in the manufacturing business for over 40 years and cutting aluminum with any standard grinder is forbidden.
Well, I got the "after" dyno pull done today. I was pleasantly surprised. Jack is a 2019 JLUR 3.6 with AT.I was considering doing the exact same thing