The aggressive custom look Arlen Ness by MagnaFlow F-Bomb is engineered to increase power with an attitude. Discover ground pounding 2 into 1 performance with unmistakable style and sound. The Hi-Flow louver core delivers a bold, dominate sound quality from idle through full throttle. Other F-Bomb Features: • 1-3/4” to 2” to 2-1/4” stepped stainless steel head pipes for optimal torque and horsepower gains through the power band • 2-1/2” full coverage heat shields and precision laser cut junction cover • 12mm and 18mm O2 sensor ports allow for maximum tuning options • 4-1/2” inverted gloss black end cap sets inside a competition style body for a mean and nasty look on your bike Give your Sportster the best full system with head pipes, mufflers and heat shields with MagnaFlow's unmatched F-Bomb exhaust. With a chrome finish and gloss black end caps, you'll not only have the best sounding system, but the best looking performance exhaust on the road. Custom fit to your bike, MagnaFlow's full system with head pipes, mufflers and heat shieldss for all Sportster® models years 2004-2017 are a guaranteed improvement to your stock exhaust system.