Borla Universal Oval Transverse 2.5in Inlet/Outlet 19in x 10.25in x 5.5in Turbo XL Muffler - 40477 fits_1999-2004`Audi`A6 Engineers designed this one of

Engineers designed this one of a kind product to have a 222% increase in the cross sectional area at the power robbing bottleneck near the turbo inlets

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5" round Outside Diameter (O

F13 640iX Coupé

and is waterproof with 3M self-adhesive backing

Borla Universal Oval Transverse 2.5in Inlet/Outlet 19in x 10.25in x 5.5in Turbo XL Muffler - 40477 fits_1999-2004`Audi`A6 Engineers designed this one ofTransverse Flow design. Transverse flow mufflers were originally designed for GM F Body Camaros and Firebirds. On these vehicles they were mounted behind the rear axle and were parallel to the axle. This muffler can also be used to create custom systems on other vehicles. Single 2. 5" Offset Inlet Dual 2. 5" Offset Outlets. The inlet and one outlet are on one end of the muffler, and the second outlet is on the opposite end. Reversible design for