Flowmaster Super 40 Series Muffler 3.50" In/Out Offset LY22471 and are designed for an

and are designed for an exact port match with Dougs headers

2006-2007 Buick Rainier

1997-1997 Ford F-450 Super Duty

High Amperage

6-1/2 x 6-1/2 in Legs

Flowmaster Super 40 Series Muffler 3.50" In/Out Offset LY22471 and are designed for anFlowmaster introduces their new Super 40 Series muffler intended for late model pickup trucks with 3. 5in OEM tubing size. This muffler features a 3. 5in offset inlet offset outlet configuration with larger 4. 0in internals for maximum flow capabilities with the larger engine sizes found in today?? s trucks. Being a Super 40 design, this muffler will deliver a deep, aggressive sound outside and inside the vehicle. Fully welded with 409S Stainless