FLMLF Alloy Exhaust Tuned Pipe of 23CC-36CC Engine Fit for 1/5 HPI ROFUN BAHA King Motor ROVAN BAJA SS 5B 5T 5SC Truck Parts. A Flat Exhaust Port Section Can Better Ensure Perfect Tightness with The Engine Cylinder Head Exhaust Port, Greatly Improving The Turbocharging and Exhaust Performance of The Engine on The SS Resonant Tube!