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Vehicle Info NeededBORLAPART NUMBER: 157-40641
XR-1 Racing Bullet Muffler Midgets, Mini Sprints & Dwarf Cars
$22899
Ships on Sep 11, 2026
Lowest Price GuaranteeRacing Bullet Mufflers
- XR-1 Racing Bullet Muffler
- Midgets, Mini Sprints & Dwarf Cars
- Inlet Diameter: 2-1/2''
- Outlet Diameter: 2-1/2''
- Case Size: 14'' x 3-1/2''
- Race Muffler
- Million Mile Warranty
Multicore Racing Mufflers
Borla XR-1 Racing Mufflers are the choice of today's hottest drag and oval track racers. With a patented straight-through design and multicore technology, Borla XR-1 Mufflers actually outflowed a straight pipe in repeated testing. They use sound-absorbing stainless steel packing to prevent burnout and meet the strictest noise requirements. Hands down, Borla's XR-1 Series offers the best balance of sound and power.
Part TypeMuffler
Product LineBorla XR-1 Racing Mufflers
BrandBORLA
Package Height6.7
Package Width9.8
Package Length18.6
Weight7.28 PG
Part CategoryPerformance Parts
ShapeBullet
Outlet QuantityOne
Inlet LocationCenter
Inlet PositionCenter
Main Piping Diameter2.500 in.
Inlet TypeSingle Center Inlet
Inlet Size (In.)2.5
Outlet StyleStraight tip
Muffler FinishBrushed
Body Length14.000 in.
Muffler Count1
Inlet Outside Diameter2.500 in.
Inlet Diameter2.5 in (63.5 mm)
Inlet QuantityOne
Outlet Outside Diameter2.500 in.
Muffler MaterialStainless steel
Outlet Size2.5 in (63.5 mm)
ConstructionAll Welded
Inlet Connection TypePipe
Outlet Diameter2.5 in (63.5 mm)
QuantitySold individually
Overall Length19.000 in.
MaterialT-304 Stainless Steel
Case Length14 in (355.6 mm)
Internal ConstructionPerforated tube
Case ShapeRound
Body Width3.500 in.
Outlet LocationCenter
Body Height3.500 in.
Outlet TypeSingle Center Outlet
Case Outside Diameter3.5 in (88.9 mm)
Part FitmentUniversal
Outlet PositionCenter
Vendor Part Number40641
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
