Flowmaster FlowFx Exhaust System - Cat-Back - 2-1/2" Diameter - Dual Rear Exit - 4-1/2" Black Ceramic Tips - Stainless - 5.7 L 20-OTL-NR 3/8-24 Thread

3/8-24 Thread

Universal Muffler - Some adaptation may be required

1978-1991 Oldsmobile Cutlass Calais

Colors are Black

Flowmaster FlowFx Exhaust System - Cat-Back - 2-1/2" Diameter - Dual Rear Exit - 4-1/2" Black Ceramic Tips - Stainless - 5.7 L 20-OTL-NR 3/8-24 ThreadDoes not fit trucks with factory single exit tailpipe or the 2019 2023 new body style. Deep, Powerful Tone Inside and Outside the Vehicle FlowFX "Straight through" Performance Muffler 16 gauge Mandrel bent Stainless Steel Tubing Uses the Factory Hanger Locations Includes All Necessary Hardware Clears the Factory Spare Tire Lifetime Limited Warranty Easy Installation Product Description: Exhaust System FlowFx Cat Back 2 1 2 in Diameter Dual Rear Exit 4