Flowtech 11504FLT Standard Header Features: Fuel Economy From The Engine Leak Test For Max Performance Mandrel-Formed Power Plenum Leakproof O-Ringed Port Seals Include All Mounting Hardware Height: 15.00 Width: 10.50 Length: 23.00 Weight: 17.00 lbs Fitment: 1997/GMC/C2500/Sierra SLT Standard Cab Pickup 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::Intended For Race Use Only, w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ Catalytic Converter Compatible Y-Pipe Available Separately~ w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange^^1997/GMC/C2500/Sierra SLT Extended Cab Pickup 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::Intended For Race Use Only, w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ Catalytic Converter Compatible Y-Pipe Available Separately~ w/Oxy. Sensor - Use REducer PN[1011... |