So far I like them. Much quieter, and seem to handle quite well. Tried them in snow and they do well for a performance tire.

Same here, just north of the city, might get some snow to play in this weekend!

Where in Colorado?

No, but I have an aftermarket rearview camera I want to install and want to hide the wires, so that route is similar to what I was thinking.

It's good to know people..was able to get a cabin air filter for $20. Easy to change out too!

I did, and none seem to stock one except the K&N filter which is $60. I might go with the K&N, but not convinced a re-useable filter is the way to go.

Anyone find a replacement engine air filter that costs less then $40???

How much are you selling them for?

Uh oh, I guess I am way overdue for a diff service. I haven't used AWD much, so hopefully not an issue. As for the coolant, what comes with it initially? Do I just check to see if it's green?

nothing wrong with a g35, but you are talking a 40-50k car...so it would be an upgrade