Now that I have my engine running I'm thinking about a couple of simple mods for my LS6. This car is going to be a driver. I was thinking about an 85 mm throttle body. I read that this was a standard throttle body with the LQ9/ 6.0L engine and it's an upgrade. There's a good muffler shop near my home. It's run by a guy that's been there forever and he does great work. So a catback is a mod I plan for sure. Any thoughts on the throttle body?