I want to put on a Flowmaster dual unit and was wondering how long the labor should take at a decent shop.

 

An hour maybe

 

Nothing over an hour

 

mine costed 200 to get put on but that was the cost of pipes and custom bending and fully welding it in. if its a flowmaster kit you probably wouldn't have to hard a time putting it on yourself with fairly basic hand tools.

 

200-300