Similar to エキゾーストマニホールド
0
01
1▲1 trends2
23
34
45
56
67
78
89
910
1011
11 (number)12
12 (number)13
13 (number)19
19 (number)40
40 (number)70
70 (number)100
100400
400 (number)700
700 (number)1000
1000 (number)1000000
1,000,0002ストローク機関
Two-stroke engine▲1 trends三元触媒
Catalytic converterチャンバー
Expansion chamber排気デバイス
Two-stroke power valve systemループ式掃気
Schnuerle porting4chan
4chan