BN-079/BN-080A/BN-080AA/BN-080B/BN-080BB/BN-080C/BN-080CC/BN-081A/BN-081B/BN-082
(Pictured is BN-079)
| Part Number | Sensor | Length | Additional Info |
| BN-079 | 56" | 2 bolt flare in, 2 bolt flange out, 2 bends in rear pipe | |
| BN-080A | No | 56" | front neck curves up, 2 bolt flare in, 2 bolt flange out, 3 bends in rear pipe |
| BN-080AA | Yes | 56" | front neck curves up, 2 bolt flare in, 2 bolt flange out, 3 bends in rear pipe |
| BN-080B | No | 56" | front neck curves to right, 2 bolt flare in, 2 bolt flange out, 3 bends in rear pipe |
| BN-080BB | Yes | 56" | front neck curves to right, 2 bolt flare in, 2 bolt flange out, 3 bends in rear pipe |
| BN-080C | No | 56" | front neck curves to left, 2 bolt flare in, 2 bolt flange out, 3 bends in rear pipe |
| BN-080CC | Yes | 56" | front neck curves to left, 2 bolt flare in, 2 bolt flange out, 3 bends in rear pipe |
| BN-081A | No | 46 3/8" | 2 bolt cast iron inlet, 2 bolt out |
| BN-081B | Yes | 46 3/8" | 2 bolt cast iron inlet, 2 bolt out |
| BN-082 | 40" | 2 bolt inlet, 2 bolt out |