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          | Fitting Position: | before catalytic converter | 
| Inner Diameter [mm]: | 93 | 
| Outer Diameter [mm]: | 101.5 | 
| Thickness [mm]: | 5 | 
| GMC: | 12589379 | 
| GMC: | 12608382 | 
| GMC: | 12609878 | 
| OPEL: | 48 07 843 | 
| CHEVROLET: | 12589379 | 
| CHEVROLET: | 12608382 | 
| CHEVROLET: | 12609878 | 
| GENERAL MOTORS: | 12589379 | 
| GENERAL MOTORS: | 12608382 | 
| GENERAL MOTORS: | 12609878 | 
| PONTIAC: | 12589379 | 
| PONTIAC: | 12608382 | 
| PONTIAC: | 12609878 | 
| BUICK: | 12589379 | 
| BUICK: | 12608382 | 
| BUICK: | 12609878 | 
| CADILLAC: | 12589379 | 
| CADILLAC: | 12608382 | 
| CADILLAC: | 12609878 | 
| OLDSMOBILE: | 12589379 | 
| OLDSMOBILE: | 12608382 | 
| OLDSMOBILE: | 12609878 | 
| SATURN: | 12589379 | 
| SATURN: | 12608382 | 
| SATURN: | 12609878 | 
| HUMMER: | 12589379 | 
| HUMMER: | 12608382 | 
| HUMMER: | 12609878 |