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![Borla Dual/Dual Proxs Muffler 2.5" Dual/2.5" Dual 19"X4"X9.5" Internal "X-Pipe" Universal Part Reversible Flexibility Notched Necks Clamp-On Installation Borla Dual/Dual Proxs Muffler 2.5" Dual/2.5" Dual 19"X4"X9.5" Internal "X-Pipe" Universal Part Reversible Flexibility Notched Necks Clamp-On Installation](https://cdn11.bigcommerce.com/s-5yvdnrf5of/images/stencil/300x300/products/3511/14191/400493__67119.1574959578.jpg?c=1)
All BORLA® ProXS™ Mufflers utilize a straight-through design; they do not use chambers or baffles that slow down the flow of exhaust. As such, every one of the universal mufflers are reversible.