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XR-1® Multi-Core

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XR-1® Multi-Core (15)
XR-1 Raceline

Part# 400024 What vehicle does this fit?

400024-main-1-thumb.jpg
Round 14" X 6.25" Inlet (I.D.): 2.5" Outlet (O.D.): 2.5"

  • Universal muffler. Reversible design.
  • Long body design works well on SUV & truck applications
  • Can be used on a wide range of vehicles
  • 2.5" Center Inlet/ 2.5" Center Outlet 6.25" Round x 14" Long Body 18.5" Overall Length
  • Multi-Core 6 tube internal design.

Price: $294.99

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XR-1 Raceline

Part# 400069 What vehicle does this fit?

400069-main-1-thumb.jpg
Oval 23" X 5.5" X 8.5" Inlet (I.D.): 4" Outlet (O.D.): 4"

  • Universal muffler. Reversible design.
  • Long body design works well on SUV & truck applications
  • Can be used on a wide range of vehicles including rotary engine equipped vehicles
  • 4" Center Inlet/ 4" Center Outlet 5.5" x 8.5" Oval x 23" Long Body 28" Overall Length
  • Multi-Core 6 tube internal design. High temperature SS wool for sound control.

Price: $399.99

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XR-1 Raceline

Part# 400115 What vehicle does this fit?

400115-main-1-thumb.jpg
Oval 34" X 8.5" X 5.5" Inlet (I.D.): 3" Outlet (O.D.): 3"

  • Universal muffler. Reversible design. No BORLA® logo embossement.
  • Long body design works well on SUV & truck applications
  • Designed for Pre-Runner vehicles, but can be used on other applications including rotary engines
  • 3" Center Inlet/ 3" Center Outlet 5.5" x 8.5" Oval x 34" Long Body 39.25" Overall Length
  • Multi-Core 4 tube internal design. High temperature T-304 stainless steel wool for sound control

Price: $553.99

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XR-1 Raceline

Part# 400261 What vehicle does this fit?

400261-main-1-thumb.jpg
Round 24" X 6.25 Inlet (I.D.): 3.5" Outlet (O.D.): 3.5"

  • Universal muffler. Reversible design.
  • Long body design works well on SUV & truck applications
  • Can be used on a wide range of vehicles including rotary engine equipped vehicles
  • 3.5" Center Inlet/ 3.5" Center Outlet 6.25" Round x 24" Long Body 29" Overall Length
  • Multi-Core 6 tube internal design. High temperature T-304 stainles steel wool for sound control.

Price: $437.99

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XR-1 Raceline

Part# 400371 What vehicle does this fit?

400371-main-1-thumb.jpg
Oval 16" X 4.25" X 7.88" Inlet (I.D.): 3" Outlet (O.D.): 3"

  • Universal muffler. Reversible design. No BORLA® logo embossement.
  • Compact design is perfect for applications with limited space
  • Can be used on a wide range of vehicles
  • 3" Center Inlet/ 3" Center Outlet 4.25" x 7.88" Oval x 16" Long Body 21" Overall Length
  • Multi-Core 4 tube internal design

Price: $298.99

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XR-1 Raceline

Part# 400372 What vehicle does this fit?

400372-main-1-thumb.jpg
Oval 12" X 4.25" X 7.88" Inlet (I.D.): 3" Outlet (O.D.): 3"

  • Universal muffler. Reversible design. No BORLA® logo embossement.
  • Compact design is perfect for applications with limited space
  • Can be used on a wide range of vehicles
  • 3" Center Inlet/ 3" Center Outlet 4.25" x 7.88" Oval x 12" Long Body 17" Overall Length
  • Multi-Core 4 tube internal design

Price: $267.99

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XR-1 Raceline

Part# 400373 What vehicle does this fit?

400373-main-1-thumb.jpg
Round 16" X 6.25" Inlet (I.D.): 3" Outlet (O.D.): 3"

  • Universal muffler. Reversible design. No BORLA® logo embossement.
  • Long body design works well on SUV & truck applications
  • Can be used on a wide range of vehicles
  • 3" Center Inlet/ 3" Center Outlet 6.25" Round x 16" Long Body 21" Overall Length
  • Multicore 4 tube internal design

Price: $299.99

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XR-1 Raceline

Part# 400374 What vehicle does this fit?

400374-main-1-thumb.jpg
Round 16" X 6.25" Inlet (I.D.): 4" Outlet (O.D.): 4"

  • Universal muffler. Reversible design. No BORLA® logo embossement.
  • Long body design works well on SUV & truck applications
  • Can be used on a wide range of vehicles
  • 4" Center Inlet/ 4" Center Outlet 6.25" Round x 16" Long Body 21" Overall Length
  • Multi-Core 4 tube internal design

Price: $390.99

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XR-1 Raceline

Part# 401012 What vehicle does this fit?

401012-main-1-thumb.jpg
Round 14" X 6.25" Inlet (I.D.): 3.5" Outlet (O.D.): 3.5"

  • Universal muffler. Reversible design.
  • Designed for applications where a 6.25" round muffler body can be used
  • Will work on a wide range of vehicles
  • 3.5" Center Inlet/ 3.5" Center Outlet 6.25" Round x 14" Long Body 19.75" Overall Length
  • Multi-Core 4 tube internal design

Price: $319.99

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XR-1 Raceline

Part# 40536 What vehicle does this fit?

40536-main-1-thumb.jpg
Oval 12" X 3" X 7.88" Inlet (I.D.): 3.5" Oval Tube Outlet (O.D.): 3.5" Oval Tube
Pipe Diameter: 3.5" Tube Formed Into 4.13" x 2.61" Oval

  • Universal muffler. Reversible design. No BORLA® logo embossment.
  • Slim Line mufflers are perfect for low profile applications with limited space
  • Can be used on a wide range of vehicles including rotary engine equipped vehicles
  • 4.13" x 2.61" Oval Center Inlet / Outlet Necks. 12" Long x 3" High x 7.88" Wide Oval Body 17" OAL
  • Multi-Core 2 tube internal design. High temperature T-304 stainless steel wool for sound control.

Price: $553.99

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XR-1 Raceline

Part# 40575 What vehicle does this fit?

40575-main-1-thumb.jpg
Oval 16" X 4.25" X 7.88" Inlet (I.D.): 3" Outlet (O.D.): 3"

  • Universal muffler. Reversible design.
  • Compact design is perfect for applications with limited space
  • Can be used on a wide range of vehicles including rotary engine equipped vehicles.
  • 3" Center Inlet/ 3" Center Outlet 4.25" x 7.88" Oval 16" Body 21" Overall Length
  • Multi-Core 3 tube internal design. High temperature T-304 stainless steel wool for sound control

Price: $309.99

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XR-1 Raceline

Part# 40641 What vehicle does this fit?

40641-main-1-thumb.jpg
Round 14" X 3.5" Inlet (I.D.): 2.5" Outlet (O.D.): 2.5"

  • Universal muffler. Reversible design. No BORLA® logo embossement.
  • Bullet style muffler with neck on inlet end only
  • Use on compact applications where no tail pipe or turn down is needed, or weld on your own
  • 2.5" Center Inlet/ 2.5" Center Outlet (no neck) 3.5" Round x 14" Long Body 16.75" Overall Length
  • Multi-Core 3 tube internal design. High temperature T-304 SS wool for sound control.

Price: $228.99

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XR-1 Raceline

Part# 40722 What vehicle does this fit?

40722-main-1-thumb.jpg
Round 16" X 6.25" Inlet (I.D.): 3.5" Outlet (O.D.): 3.5"

  • Universal muffler. Reversible design.
  • Long body design works well on SUV & truck applications
  • Can be used on a wide range of vehicles including rotary engine equipped vehicles
  • 3.5" Center Inlet/ 3.5" Center Outlet 6.25" Round x 16" Long Body 21" Overall Length
  • Multi-Core 6 tube internal design. High temperature T-304 stainless steel wool for sound control

Price: $348.99

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XR-1 Raceline

Part# 40741 What vehicle does this fit?

40741-main-1-thumb.jpg
Round 16" X 6.25" Inlet (I.D.): 4" Outlet (O.D.): 4"

  • Universal muffler. Reversible design.
  • Long body design works well on SUV & truck applications
  • Can be used on a wide range of vehicles including rotary engine equipped vehicles
  • 4" Center Inlet/ 4" Center Outlet 6.25" Round x 16" Long Body 21" Overall Length
  • Multi-Core 6 tube internal design. High tempertaure T-304 stainless steel wool for sound control.

Price: $409.99

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XR-1 Raceline

Part# 4ALEXR1993 What vehicle does this fit?

4ALEXR1993-main-1-thumb.jpg
Oval 13.5" X 5 X 6.25" Inlet (I.D.): 3" Outlet (O.D.): 3"

  • Universal muffler. Reversible design.
  • This muffler design was run by the entire field at the 2023 Busch Light Clash at the Coliseum race
  • Designed for applications where a 5" X 6.25" oval body can be used
  • 3" Center Inlet/ 3" Center Outlet 5" x 6.25" Oval x 13.5" Long Body 18.5" Overall Length
  • Multi-Core 6 tube internal design

Price: $348.99

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Refine these results:
Inlet Diameter
  1. 2.5"
  2. 3"
  3. 4"
  4. 3.5"
  5. 3.5" Oval Tube
Case Length
  1. 23
  2. 34
  3. 14
  4. 24
  5. 16
  6. 12
Case Width
  1. 6.25
  2. 3.5
  3. 3
  4. 5.5
  5. 4.25
  6. 8.5
System type
XR-1 Raceline
Inlet / Outlet Design
  1. Center/Center
Tip Finish
  1. N/A