Investigators say the pair made a living stealing catalytic converters from vehicles in Northeast Philadelphia.
The crime spree started a couple of months ago and mainly targeted Hondas and Ford Pickup trucks
The thieves were able to sell the converters for $200 to $300 at salvage yards.
"We value the damage that they've created with this investigation at probably close to $100,000 damage."
Police are asking anyone else who may have been a victim to contact them.