The Megan brand downpipes fit fine, and I have yet to read somebody cracking them. My Megan DP's/TP's fit perfectly. I don't know about the other ebay DP's, but Megan seems to be a quality knock-off parts maker for alot of car parts. From what I've gathered,its the other ebay DP's/TP's that don't fit correctly. IMO for the price ($120) these are the best value for stock turbos.