I have a silver polished tial 50mm bov on a 2.5'' ss pipe about 13'' long.
I also have a custom bell engineering i/c core which has 2.5'' outlets on the same side and the dimensions are around 15x14.5x3.5. I'll sell both the core and bov for $550. I paid $600 for the core by itself. I also have some 2.25-3'' constant torque clamps to go with it and the silicone couplers which are also 2.5 inches. I ran the i/c as a topmount set up on an MR2, but if you have enough space up front for whatever car you have the core is only 3.5 inches thick. Lmk
Mike
404-583-5811