Ultimate Racing’s EFRA 2141 Black HD off-road exhaust set is a heavy-duty variant of the standard chrome-finish pipe set. The high-quality, super strong exhaust is made of aluminium and features a black surface coating for improved durability and easier cleaning. Due to its high rigidity it also offers better resonance for improved overall performance while the dark surface coating further improves heat dissipation. The pipe also features the Fast-Lock system for an optimised power curve, higher top speeds and better fuel mileage. As for the characteristics, the exhaust and muffler combination promises precise and linear throttle response in the low to mid RPM range with great top end speed. Included comes mounting hardware such as springs and gaskets.