Item Condition: This item has been used for test purposes and may show heavy signs of use. There may be major cosmetic damage such as scuffs, scratches, stains, chips or dings. The original packaging may or may not be present. This item is missing (1) 8x16mm Flange Bolt 005-FB816 and (3) 8mm Nylon Lock Nut 005-NN8.

Two Brothers S1R Black Series Exhaust System Kawasaki Ninja 650 / Z650

The Two Brothers S1R Black Series Exhaust System is a state-of-the-art product from Two Brothers Racing. It features carbon fiber highlighted by a natural finished aluminum outlet and stamped spring-mounted inlet for ultimate durability. All of TBR’s carbon fiber parts are made with a high temp aerospace grade epoxy resin. The carbon fabric is made with a 33 million modulus carbon tow impregnated with the high temperature resin under very tight tolerances.

The mid-pipe of the S1R Black Series is constructed from .035” thick #304 chromium-nickel stainless steel. After a few heat cycles the #304 steel turns a golden amber color, the hallmark of quality stainless. The exhaust note can be described as a deep thunderous roar thanks to TBR’s spiral-wound perforated core technology.

The headers and midpipes of the S1R Black Series Exhaust feature race proven-and dyno tuned stepped exhaust pipes made of #304 chromium-nickel stainless steel. This particular steel is not only strong and lightweight but also turns a golden amber color after a few heat cycles giving it a distinctive character. The stepped design creates a vacuum effect that forces hot exhaust gases out at a higher rate compared to a single diameter pipe. Power improvements can be felt in both the mid and high rev-ranges while the dropped weight will improve both acceleration and cornering speed.

Features:

• Aerospace high-temp carbon fiber
• Stamped spring-fit inlet
• Optional P1 and PX1 sound inserts available (sold separately)
• Optional anodized bolts kits available (sold separately)
• Made in the USA

Note: Images for reference only. Actual S1R Black Series muffler will vary slightly depending on your bike's make and model.