Universal Rectangular Tip (T5120BLK) by MBRP. Tip Material Stainless Steel. Tip Shape Rectangular. Tip Inlet Diameter 3. Tip Outlet Diameter 7.375. Tip Finish Black. CARB Compliant Yes. Be a square peg in a world of round holes with a rectangular exhaust tip. This T304 stainless tip is mirror-polished to stay shiny. Theres no clamp or welding necessary to install it. SPECIFICATION Mirror-polished T304 stainless steel Rolled edges Clamps to exhaust pipe No clamp necessary