Its a commonly asked question on where to find a Dual Downpipe merge pipe. We are now proud offer three different sizes in 11g Aluminum and Stainless Steel. Merge inlet and outlets are the same size. 

Example: Borg Warner s400, Downpipe flange for 4" outlet, 4" Inlet to Y merge,Twin 4" outlets.

Includes Vband Clamp and Flange for selected turbo style.

**Pictures are general examples of material selected and not necessarily the correct flange for the selection**