Don't waste time. I have ordered this and item 49796 and had to return the first time because the item did not fit the engine at all and both times the headers did not fit properly and the gaskets were missing. Definitely don't buy them. MagnaFlow made a terrible product for my BMW M3. My mechanic had to waste time and I had to waste money, gas and time on this product and I will try to help anyone who is thinking of ordering these items and tell you not to waste a second looking at them . Find another product or brand.