Wow, thanks for the great write-up. I did this last night and it was REALLY easy. Got a K&N drop in and I think it took me longer to get to my saw in the garage (HoDepot only had 2 foot length of PVC) and cut the pipe then to actually assemble and put in the mod. Definitely go to Lowe's for the downspout connector. Home Depot had one of a different brand, but it was not the right fit. Went to Lowe's and they had the exact part you specified in stock. Seems to give me a little more on the top end, but that could be just wishful thinking. Now I can save that CAI money for something else! Thanks.