I still say no. 3495.00 for exhaust , tune,and cai. Also some badges and floor mats.
If it were me I would order the 1LE I wanted WITH NPP exhaust from GM. Then put the cai that I wanted on it. Badges are just badges and nothing more. Thats just my opinion.
It will save you money in the long run, plus it will be done to your taste. Now if the slp style is what you are lookin for then go for it. In the end it is your car and your money.