how much would it cost to put in new headers for 94 buick le saber?

2 hour right 1 hour left exhaust manifold replacement is the labor guide time replace the exhaust manifolds but always when doing exhaust work bolts can be rusted and brake requiring heat or even drilling and taping out the bolts if they break. Use penetrating oil and good 6 point fitting wrenches and sockets, make sure all hardware is moving freely before taking on replacement of the parts yourself. Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info. There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online