Any 6th (or is it 7th?) gen Monte owners here?  I bought this Monte SS lower grille to replace the stock grille on my '06 LT, but I never got around to installing it.  It should fit the front bumper on the '06-'07 LT, as the SS and LT bumpers for those years are basically the same.

GM Parts Direct is currently selling this (part #10368817) for $118.76 + shipping; I'll sell it to any NYMCC member for $60 + shipping.  If you feel like making the drive over the bridge to lower Westchester, you can also pick it up in Yonkers.