Thank you for the prompt reply! It's good to know that I do have the SAIS on my 07.... now I just have to finally pull the trigger, ($1057 - $1360 Canadian, OUCH), on these headers which Doug Thorley does have in stock.
What does SAIS mean? Googled it but nothing. Doug Thorley website mentions nothing of this. Just says "Stainless Steel (Mild steel flanges)". Does this mean that the flanges are stainless as well or just mild steel? ��
Hey man, did you ever figure out what your clunk problem was? I watched your YouTube video and it sounds similar to my clunk, and I also have the bilsteins 5100.
