請問排氣管Slip-on line是什麼？

排氣管Slip-on line　Racing line Evolution line分別是代表什麼？

另外排氣管資料上面有寫數字，是不是代表ＣＣ數呢？
例如：ninja 250 fi，藍字部分。


白牌是否在排氣管選擇上找到對應的ＣＣ數會較好？


希望知道的車友能解答。
感恩。

Slip-on line是尾段

Racing line是全段

Evolution line頂級版本

大概可能是這樣

SLIP-ON LINE

Akrapovič’s Slip-On Line is designed for recreational riders. These exhaust systems are easy to install and they replace stock mufflers. They will give you more power, more torque and less weight and consequently asmoother ride. Most versions are with EC type-approval.

為原廠排氣管的小升級版本

RACING LINE

The Racing Line is a complete high-quality stainless steel exhaust system made with close attention to detail.
Its unique design enables it to obtain the maximum output for each specific model of motorcycle while significantly reducing overall weight for top performance in everyday riding or even in the most challenging races. It is identical to the Evolution Line exhaust system apart from the material.

為競賽版本 更輕的重量和全段不鏽鋼 馬力提升比Slip-on版本更高


EVOLUTION LINE
The Evolution Line is a flagship of the Akrapovič exhaust systems, used and tested by top factory teams in racing.
Each model is unique and dedicated to maximising engine performancewhile reducing overall weight for optimised handling of the whole motorcycle.


頂級賽車旗艦版本 提升最大限度的馬力跟減輕整體重量

SLIP-ON LINE~單尾段(尾段筒身材質為~碳纖維or鈦合金)
RACING LINE~開發特定車種全段~(前段至中段為不鏽鋼(板材厚度有控制-達到輕量化)(尾段筒身材質為~碳纖維or鈦合金)
EVOLUTION LINE~開發特定車種全段~(前段至中段為鈦合金(板材厚度有控制-達到極致輕量化)(尾段筒身材質為~碳纖維or鈦合金)

謝謝各位解答。
感恩。