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Borla Collector/Mufflers 40703

Borla 40703 - Borla Collector/Mufflers

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Collector Muffler, Stainless Steel, Natural, 4 Into 1, 2.375 in. Inlets/4.5 in. Outlet, 20.5 in. Long, Each

Estimated Ship Date: 3/16/2015 (if ordered today) Would you rather pick it up? Select Location

  • This part is normally shipped directly from the manufacturer / Supplier.

  • Order this item and get free delivery and handling on your entire order! Oversize fees also waived on this item. Valid on orders shipped in the contiguous United States.

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Brand: Borla

Manufacturer's Part Number: 40703

Part Type: Collector Mufflers

Product Line: Borla Collector/Mufflers

Summit Racing Part Number: BOR-40703

UPC: 808422407038

Tuneable: No

Inlet Quantity: Four

Inlet Size: 2.375 in.

Outlet Quantity: One

Outlet Size: 4.5 in.

Collector Muffler Length (in): 20.500 in.

Crankcase Evacuation Tube Welded In: No

Collector Muffler Material: Stainless steel

Collector Muffler Finish: Natural

Quantity: Sold individually.

In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

Since the dreaded muffler rule is coming to more and more classes, it makes sense to run a muffler proven to reduce sound and free-up horsepower. Ideal for dragsters and roadsters, Borla's fully welded XR-1 collector/mufflers are made from T-304 stainless steel and replace the 4-into-1 collector on your headers. The XR-1s are also suited to Sprint Cars and other Circle Track classes that have room for them. If you run an econo/bracket-style dragster, you can get an XR-1 attached to a stainless steel header. This upswept design is mandrel-bent from the same stainless steel as the muffler.


Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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