BORLA® Mufflers - Performance Mufflers | Borla Exhaust

Mufflers

For custom needs, BORLA® offers universal mufflers (also called resonators). These premium muffler upgrades are made from high-quality T-304 stainless steel. Use of these products may require changes to the OEM system or the fabrication of a completely custom exhaust. All responsibility for the outcome of such projects is assumed by the customer, so give us a call at 1-877-462-6752 if you have questions before purchasing.

NOTE: All of our BORLA® mufflers utilize a straight-through design; we do not use chambers or baffles that slow down the flow of exhaust.  As such, every one of our universal mufflers are reversible.

A center-in/offset-out muffler can also be installed as offset-in/center-out.  The same holds true for our center-in/dual-out mufflers.

ProXS™
ProXS™
ProXS™ Mufflers

All of our BORLA® ProXS™ Mufflers utilize a straight-through design; we do not use chambers or baffles that slow down the flow of exhaust.  As such, every one of our universal mufflers are reversible.

  • T-304 stainless steel will never rust.
  • 100% welded construction for strength.
  • Free-flow design for improved performance.
  • High-temperature continuous-filament fiber (CFF) acoustic material for sound control.
  • Natural mill finish can be brushed or polished.
  • Reversible design for installation flexibility.
  • Recommended for car, SUV and truck applications.
CrateMufflers™
CrateMufflers™

BORLA® CrateMufflers™ are the world’s first mufflers specifically designed to optimize the sound & power of crate & custom-built motors. They are NOT universal mufflers. The CrateMufflers™ are available in the 3 BORLA® Sound Technologies: Touring, S-Type, & ATAK®.

BORLA® CrateMufflers™

CrateMuffler®, 2.5" OFFSET-IN/
Part# 400853
CrateMuffler®, 2.5
MSRP: $276.99
CrateMuffler® Part # 400853
CrateMuffler®, 3.0" OFFSET-IN/
Part# 400841
SBC HOT 350, 383 part # 400841 400841
MSRP: $276.99
CrateMuffler® Part # 400841
CrateMuffler® OFFSET IN/ CENTE
Part# 400945
CrateMuffler® OFFSET IN/ CENTE 400945
MSRP: $251.99
CrateMuffler® Part # 400945
XR1 RD MULTICORE 6.25" X14" 2.
Part# 400024
XR-1® Multi-Core 2.5
MSRP: $282.99
XR-1 Raceline - Multi-Core Part # 400024
MUFFLER "S-TYPE" 2.5" IN/OUT 1
Part# 40842S
MSRP: $202.99
Universal Muffler Part # 40842S
ROCK-IT 6.75"x14" RD,4.50" RD
Part# 40058
ROCK-IT 6.75
MSRP: $235.99
Universal Muffler Part # 40058
CrateMuffler®, 3.0" OFFSET-IN/
Part# 400844
SBC HOT 350, 383 part # 400844 400844
MSRP: $276.99
CrateMuffler® Part # 400844
CrateMuffler®, 3.0" OFFSET-IN/
Part# 400843
SBC HOT 350, 383 part # 400843 400843
MSRP: $276.99
CrateMuffler® Part # 400843
CrateMuffler®, 2.5" OFFSET IN/
Part# 400858
CrateMuffler®, 2.5
MSRP: $291.99
CrateMuffler® Part # 400858
MUFFLER BORLA "S-TYPE" 2.5" IN
Part# 400497
MSRP: $202.99
Universal Muffler Part # 400497
XR1 COL/MUF SHTY 2-1/8IN 3-1/2
Part# 40997
XR1 COL/MUF SHTY 2-1/8IN 3-1/2 40997
MSRP: $732.99
XR-1 Raceline - Shorty Collector Part # 40997
MUFFLER ,2.5",2.5",19"x10.25"x
Part# 40477
MUFFLER ,2.5
MSRP: $330.99
Universal Muffler Part # 40477
XR1 COL/MUF 2-3/8IN 4-1/2OUT 2
Part# 40703
XR1 COL/MUF 2-3/8IN 4-1/2OUT 2 40703
MSRP: $755.99
XR-1 Raceline - Standard Collector Part # 40703
XR1 ROUND 3-1/2IN 3-1/2OUT 16X
Part# 40722
XR1 ROUND 3-1/2IN 3-1/2OUT 16X 40722
MSRP: $322.99
XR-1 Raceline - Multi-Core Part # 40722
CrateMuffler®, 2.25" OFFSET-IN
Part# 400849
STOCK SBC 283/327/350 part # 400849 400849
MSRP: $276.99
CrateMuffler® Part # 400849
MUFFLER ,3",2.5" 19"x10.25"x 6
Part# 40474
MUFFLER ,3
MSRP: $329.99
Universal Muffler Part # 40474
XR1 COL/MUF SHTY 2-3/8IN 4-1/2
Part# 40977
XR1 COL/MUF SHTY 2-3/8IN 4-1/2 40977
MSRP: $747.99
XR-1 Raceline - Shorty Collector Part # 40977
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400851
CrateMuffler® BBC 396/402/427 part # 400851 400851
MSRP: $276.99
CrateMuffler® Part # 400851
CrateMuffler® 2.25" OFFSET-IN/
Part# 400834
Stock SBF 289/ 302/ FE BB Stock output part # 400834 400834
MSRP: $276.99
CrateMuffler® Part # 400834
XR1 SPORTSMAN 3-1/2IN 3-1/2OUT
Part# 40945
XR-1® Sportsman 3.5
MSRP: $205.99
XR-1 Raceline - Sportsman Part # 40945
CrateMuffler® OFFSET IN/ OFFSE
Part# 400947
CrateMuffler® OFFSET IN/ OFFSE 400947
MSRP: $253.99
CrateMuffler® Part # 400947
XR1 COL/MUF 2-1/4IN 4OUT 20-1/
Part# 40728
XR1 COL/MUF 2-1/4IN 4OUT 20-1/ 40728
MSRP: $755.99
XR-1 Raceline - Standard Collector Part # 40728
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400825
STOCK SBC 283/ 327/ 350 part # 400825 400825
MSRP: $276.99
CrateMuffler® Part # 400825
WAILTAIL 5.50"X8.50"X14" W 5"
Part# 40061
Wailtail - 2.25
MSRP: $253.99
Universal Muffler Part # 40061
THUMPER 4.25"X7.78"X14 OVAL W
Part# 40057
Thumper - 2.25
MSRP: $222.99
Universal Muffler Part # 40057
XR-1 23X8.5X5.5 X4" MULTICORE
Part# 400069
XR-1 23X8.5X5.5 X4
MSRP: $406.99
XR-1 Raceline - Multi-Core Part # 400069
RESONATOR: 3.0" CEN/CEN Ø4" X
Part# 400939
RESONATOR: 3.0
MSRP: $132.99
CrateMuffler® Part # 400939
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400857
CrateMuffler®, 2.5
MSRP: $281.99
CrateMuffler® Part # 400857
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400854
CrateMuffler®, 2.5
MSRP: $276.99
CrateMuffler® Part # 400854
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400823
CrateMuffler™ STOCK SBC 283/ 327/ 350 part # 400823 400823
MSRP: $276.99
CrateMuffler® Part # 400823
XR1 MULTICORE OVAL 3" ID IN/OU
Part# 400115
XR1 MULTICORE OVAL 3
MSRP: $542.99
XR-1 Raceline - Multi-Core Part # 400115
CrateMuffler® 2.5" OFFSET/ OFF
Part# 400828
Stock SBF 289/ 302 part # 400828 400828
MSRP: $276.99
CrateMuffler® Part # 400828
XR1 COL/MUF SHTY 2-1/4IN 4OUT
Part# 40976
XR1 COL/MUF SHTY 2-1/4IN 4OUT 40976
MSRP: $747.99
XR-1 Raceline - Shorty Collector Part # 40976
MUFFLER MULTICORE 2.5" IN/OUT
Part# 401383
MUFFLER MULTICORE 2.5
MSRP: $235.99
Universal Muffler Part # 401383
XR1 3" IN/OUT 16 X 6.25" DIA.
Part# 400373
XR1 3
MSRP: $322.99
XR-1 Raceline - Multi-Core Part # 400373
CrateMuffler®, 2.25" OFFSET-IN
Part# 400837
Stock SBF 289/ 302/ FE BB Stock output part # 400837 400837
MSRP: $276.99
CrateMuffler® Part # 400837
MUFFLER: BORLA 3" IN/OUT 6.75"
Part# 400500
MUFFLER: BORLA 3
MSRP: $242.99
Universal Muffler Part # 400500
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400943
CrateMuffler™ Big Block Chrysler part # 400943 400943
MSRP: $276.99
CrateMuffler® Part # 400943
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400941
CrateMuffler® Big Block Mopar - 383/ 413/  440 part # 400941 400941
MSRP: $276.99
CrateMuffler® Part # 400941
XRI SPORTSMAN 2.5"IN 2.5"OUT 1
Part# 40942
XRI SPORTSMAN 2.5
MSRP: $177.99
XR-1 Raceline - Sportsman Part # 40942
MUFFLER: BORLA ,3",2.5" 19"x10
Part# 400499
MUFFLER: BORLA ,3
MSRP: $329.99
Universal Muffler Part # 400499
XR1 SPORTSMAN 2.5 IN 2.5 OUT 1
Part# 40941
XR-1® Sportsman 2.5
MSRP: $163.99
XR-1 Raceline - Sportsman Part # 40941
CrateMuffler®, 2.25" OFFET-IN/
Part# 400847
STOCK SBC 283/327/350 part # 400847 400847
MSRP: $276.99
CrateMuffler® Part # 400847
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400942
CrateMuffler®, 2.5
MSRP: $276.99
CrateMuffler® Part # 400942
XR1 SPORTSMAN 3IN 3OUT 12X4.25
Part# 40943
XR1 SPORTSMAN 3IN 3OUT 12X4.25 40943
MSRP: $172.99
XR-1 Raceline - Sportsman Part # 40943
CrateMuffler®, 2.25" OFFSET-IN
Part# 400835
Stock SBF 289/ 302/ FE BB Stock output part # 400835 400835
MSRP: $251.99
CrateMuffler® Part # 400835
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400856
CrateMuffler™ Ford 5.0L Coyote part # 400856 400856
MSRP: $291.99
CrateMuffler® Part # 400856
XR1 SPORTSMAN 3IN 3OUT 16"X4.5
Part# 40944
XR1 SPORTSMAN 3IN 3OUT 16
MSRP: $177.99
XR-1 Raceline - Sportsman Part # 40944
XR1 SPORTSMAN RD 15"x5" 3"IN/O
Part# 40085
XR-1® Sportsman 3
MSRP: $160.99
XR-1 Raceline - Sportsman Part # 40085
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400819
SBC HOT 350, 383 part # 400819 400819
MSRP: $276.99
CrateMuffler® Part # 400819
XR1 SPORTSMAN 4"IN 4"OUT 12"X4
Part# 40947
XR1 SPORTSMAN 4
MSRP: $217.99
XR-1 Raceline - Sportsman Part # 40947
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400940
CrateMuffler®, 2.5
MSRP: $276.99
CrateMuffler® Part # 400940
CrateMuffler® 2.5" OFFSET-IN/O
Part# 400829
Stock SBF 289/ 302 part # 400829 400829
MSRP: $251.99
CrateMuffler® Part # 400829
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400820
SBC HOT 350, 383 part # 400820 400820
MSRP: $276.99
CrateMuffler® Part # 400820
CrateMuffler® 2.25" OFFET-IN/O
Part# 400846
STOCK SBC 283/327/350 part # 400846 400846
MSRP: $276.99
CrateMuffler® Part # 400846
XR1 BULLET 2-1/2IN 2-1/2OUT 14
Part# 40641
XR-1® Bullet 14
MSRP: $227.99
XR-1 Raceline - Bullet Part # 40641
MUFFLER MULTICORE 2.5" IN/OUT
Part# 401382
MUFFLER MULTICORE 2.5
MSRP: $246.99
Universal Muffler Part # 401382
XR1 SPORTSMAN 4IN 4OUT 16 X 4.
Part# 40948
XR1 SPORTSMAN 4IN 4OUT 16 X 4. 40948
MSRP: $244.99
XR-1 Raceline - Sportsman Part # 40948
XR1 SLIM LINE MUFFLER 3.5" O
Part# 40536
XR-1® Series Slim Line 3.5
MSRP: $263.99
XR-1 Raceline - Slim Line Part # 40536
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400773
SBC HOT 350, 383 part # 400773 400773
MSRP: $276.99
CrateMuffler® Part # 400773
CrateMuffler®, 2.5" OFFSET IN
Part# 400855
CrateMuffler® Ford 5.0L Coyote part # 400855 400855
MSRP: $281.99
CrateMuffler® Part # 400855
CrateMuffler®, 3.0" OFFSET-IN/
Part# 400840
CrateMuffler™ FOR SBC HOT 350, 383 Mufflers S-Type part # 400840 400840
MSRP: $276.99
CrateMuffler® Part # 400840
BLOWTORCH 8.50"X5.50"X14" W 4"
Part# 40060
BLOWTORCH 8.50
MSRP: $234.99
Universal Muffler Part # 40060
RESONATOR: 2.25" CEN/CEN Ø3.50
Part# 400937
CrateMuffler™ Resonator Option 2.25
MSRP: $118.99
CrateMuffler® Part # 400937
CrateMuffler® 2.5" CENTER-IN/O
Part# 400831
Stock SBF 289/ 302 part # 400831 400831
MSRP: $276.99
CrateMuffler® Part # 400831
XR1 3.5" IN/OUT 14" X 6.25" RD
Part# 401012
XR-1® Multi-Core 3.5
MSRP: $305.99
XR-1 Raceline - Multi-Core Part # 401012
XR1 3" IN/OUT 16' X 4.25 X 7.8
Part# 400371
XR1 3
MSRP: $322.99
XR-1 Raceline - Multi-Core Part # 400371
XR1 SPORTSMAN SHORTY 3-1/2" IN
Part# 40004S
XR1 SPORTSMAN SHORTY 3-1/2
MSRP: $200.99
XR-1 Raceline - Sportsman Part # 40004S
MUFFLER: BORLA 2.75" IN/OUT 7.
Part# 401158
Heavy Duty (Truck) - 2.75
MSRP: $234.99
Universal Muffler Part # 401158
CrateMuffler®, 2.5" CENTER-IN/
Part# 400832
Stock SBF 289/ 302 part # 400832 400832
MSRP: $251.99
CrateMuffler® Part # 400832
MUFFLER MULTICORE 2.5" IN/OUT
Part# 401384
MUFFLER MULTICORE 2.5
MSRP: $224.99
Universal Muffler Part # 401384
Boomers
Part# BOOMERS
Boomers BOOMERS
MSRP: $00.00
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400774
CrateMuffler™ Mufflers ATAK part # 400774 400774
MSRP: $276.99
CrateMuffler® Part # 400774
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400822
STOCK SBC 283/ 327/ 350 part # 400822 400822
MSRP: $276.99
CrateMuffler® Part # 400822
MUFFLER 3" IN/OUT 6.75" DIA. X
Part# 400436
Heavy Duty (Truck) - 3
MSRP: $242.99
Universal Muffler Part # 400436
XR1 3.5"IN/OUT 24" X 6.25" RD
Part# 400261
XR1 3.5
MSRP: $403.99
XR-1 Raceline - Multi-Core Part # 400261
XR1 OVAL MULTICORE 3IN 3OUT 16
Part# 40575
XR1 OVAL MULTICORE 3IN 3OUT 16 40575
MSRP: $322.99
XR-1 Raceline - Multi-Core Part # 40575
CrateMuffler®, 2.25" OFFSET-IN
Part# 400838
Stock SBF 289/ 302/ FE BB Stock output part # 400838 400838
MSRP: $251.99
CrateMuffler® Part # 400838
CrateMuffler®, 2.5" OFFSET-IN/
Part# 400852
CrateMuffler®, 2.5
MSRP: $276.99
CrateMuffler® Part # 400852
XR1 4" IN/OUT 16" X 6.25" DIA
Part# 400374
XR1 4
MSRP: $333.99
XR-1 Raceline - Multi-Core Part # 400374
XR1 3" IN/OUT 12 X 4.25 X 7.8"
Part# 400372
XR-1® Multi-Core 3
MSRP: $293.99
XR-1 Raceline - Multi-Core Part # 400372
XR1 SPORTSMAN RD MUFFLER: 2.5"
Part# 401392
XR1 SPORTSMAN RD MUFFLER: 2.5
MSRP: $155.99
XR-1 Raceline - Sportsman Part # 401392
XR1 SPORTSMAN 3.5"IN 3.5"OUT 1
Part# 40946
XR1 SPORTSMAN 3.5
MSRP: $217.99
XR-1 Raceline - Sportsman Part # 40946
CrateMuffler® OFFSET IN/ OFFSE
Part# 400946
CrateMuffler® OFFSET IN/ OFFSE 400946
MSRP: $291.99
CrateMuffler® Part # 400946
CrateMuffler® OFFSET IN/ CENTE
Part# 400944
CrateMuffler® OFFSET IN/ CENTE 400944
MSRP: $291.99
CrateMuffler® Part # 400944
SPITFIRE 5.50"X8.50"X14" W 3"
Part# 40059
Spitfire - 2.25
MSRP: $335.99
Universal Muffler Part # 40059
MUFFLER: 2.75" IN/OUT 6.75" DI
Part# 400130
MUFFLER: 2.75
MSRP: $234.99
Universal Muffler Part # 400130
XR1 SPORTSMAN RD 15"x5" 3.5"IN
Part# 40086
XR1 SPORTSMAN RD 15
MSRP: $161.99
XR-1 Raceline - Sportsman Part # 40086
CrateMuffler® 2.5" OFFSET-IN/C
Part# 400826
STOCK SBC 283/ 327/ 350 part # 400826 400826
MSRP: $276.99
CrateMuffler® Part # 400826
XR1 ROUND MULTICORE 4IN 4OUT 1
Part# 40741
XR1 ROUND MULTICORE 4IN 4OUT 1 40741
MSRP: $342.99
XR-1 Raceline - Multi-Core Part # 40741
MUFFLER: BORLA ,2.5",2.5",19"x
Part# 400498
MUFFLER: BORLA ,2.5
MSRP: $330.99
Universal Muffler Part # 400498
RESONATOR: 2.5" CEN/CEN Ø3.50
Part# 400938
CrateMuffler™ Resonator Option 2.5
MSRP: $118.99
CrateMuffler® Part # 400938
CrateMuffler®, 2.25" OFFSET-IN
Part# 400850
STOCK SBC 283/327/350 part # 400850 400850
MSRP: $276.99
CrateMuffler® Part # 400850
Specialty
Part# SPECIALTY
Specialty SPECIALTY
MSRP: $00.00
XR-1®
Part# XR1
XR-1® XR1
MSRP: $00.00
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