Mufflers

Custom Mufflers

Quiet Performance Mufflers

Type 1 End In-End Out Centered Mufflers

Type 1 Resonators

Type 10 - Side IN - Side OUT Mufflers

Type 2 End In-End Out Offsets Ends Mufflers

Type 2A Dual End IN - End OUT Mufflers

Type 3 IN and OUT Same End Mufflers

Type 4 Side IN - End OUT Mufflers

Type 6 End IN-Side Out Mufflers

Type 7 End In-Dual Side Out Mufflers

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Grand Rock 8" x 11" Oval HD Muffler Hanger International 1986 and up

MSRP: $215.00

$145.00

Grand Rock 8" x 11" Oval Muffler Hanger International 1660539C91

MSRP: $203.00

$153.00

Grand Rock 8" x 11" Oval HD Muffler Hanger International H-IHM6A

MSRP: $215.00

$165.00

IM-418 4 inch x 18 inch Internal Exhaust Baffle Tube (Pair)

Grand Rock 4 inch x 18 inch Internal Exhaust Baffle Tube (PAIR) IM-418

MSRP: $299.00

$218.00

IM-518 5" x 18" Internal Muffler Exhaust Baffle Tube (PAIR)

Grand Rock 5" x 18" Internal Muffler Exhaust Baffle Tube (PAIR) IM-518

MSRP: $325.01

$275.01

IM-560 5" x 60" Internal Muffler Exhaust Baffle Tube (PAIR)

Grand Rock 5" x 60" Internal Muffler Exhaust Baffle Tube (PAIR) IM-560

MSRP: $816.97

$616.97

Grand Rock 5" x 72" Internal Muffler Exhaust Baffle Tube (Pair) IM-572

MSRP: $1,039.97

$719.97

IM-672 6" x 72" Internal Muffler Exhaust Baffle Tube (Pair)

Grand Rock 6" x 72" Internal Muffler Exhaust Baffle Tube (Pair) IM-672

MSRP: $1,019.97

$719.97

IM-772 7" x 72" Internal Muffler Exhaust Baffle Tube (Pair)

Grand Rock 7" x 72" Internal Muffler Exhaust Baffle Tube (Pair) IM-772

MSRP: $1,248.25

$798.25

Universal Truck Muffler 12" x 36" 5" OD - IN-OUT M-010 Type 6

Grand Rock Universal Exhaust Muffler 12" x 36" 5" OD IN/OUT Type 6 M-010

MSRP: $609.70

$504.70

Grand Rock M-034 Type 4 Muffler Bluebird-GMC Bus 4 IN-OUT 11" Round 36" long

MSRP: $490.41

$391.41

Grand Rock M-070 Type 2 Muffler for Freightliner 11" x 36.25" Long 3" IN 4" OUT

MSRP: $281.57

$226.58

244 products total