BN-108A
| short right front pipe is 4" long |
| 3 1/4" rear pipe, 2 1/2" diameter |
| OEM# 25130679 |
BN-108B
| long right front pipe is 6 1/2" long |
| 13 1/4" rear pipe, 2 1/2" diameter |
| OEM# 25143153 |
BN-108C
| 3 bolt flange on rear |
| 11 1/2" neck on front right side |
| OEM# 25316630 |
BN-108D
| long right front pipe is 6 1/2" long |
| 13 1/4" rear pipe, 3" diameter |
| OEM#25143149 |