Originally Posted by JB-370z

No the flanges are not the same. I had my pipes custom built with the proper flanges to accept the HKS product. Absolutely nothing wrong with the Tail Brand at all, does the job very well and its made in the USA. But for my taste, nothing comes even close to the beautiful sound of an HKS BOV. I still smile really big every time I hear a full boost release. Boost is what dreams are made of