AND
MODEL
INDEX
BN-487B3/BN-487B9/BN-487B10/BN-487B11/BN-487B12/BN-487B16
BN-487B3, B9, B10, B11, B12, B16 are the same: w/2 sensors
| Part Number | OEM Number | Cover on Flex | Sensor | Body Ridges | Additional Info |
| BN-487B3 | 001M | w/out cover | 1 in rear pipe, 1 in front behind flex | 10 ridges on bottom | flat body |
| BN-487B9 | 080A | cover over flex w/holes | 1 in rear pipe | 6 humps | flat body |
| BN-487B10 | 001A | w/out cover | 1 in rear pipe, 1 in front behind flex | 10 ridges on bottom | flat body |
| BN-487B11 | 011M | w/out cover | 1 in rear pipe, 1 in front behind flex | 6 humps | flat body |
| BN-487B12 | 011A | w/out cover | 1 in rear pipe, 1 in front behind flex | 6 humps | flat body |
| BN-487B16 | 008A | w/out cover over flex | sensor behind flex, sensor in rear pipe |
OEM# and measurements required
2 BOLT OR 4 BOLT INLET, STRAIGHT OR TWISTED; SQUARE OR DIAMOND SHAPE FLANGE; WITH OR W/OUT SENSOR; LOCATION OF SENSOR; NECK, BODY, & REAR PIPE LENGTH