01-04 GM 6.6L LB7 DURAMAX

Eliminate common LB7 injector issues and unlock new power with performance parts tailored to the 2001–2004 Duramax platform. Shop injector replacement kits, turbo upgrades, and EFI Live tuning for your LB7. This category includes LB7 head gaskets, up-pipes, and fuel lift pumps that restore reliability and support high horsepower builds.

• 

  Magnaflow Muffler Mag Stainless Steel 22x5x11 3 C/O 12589

  Magnaflow Muffler Mag Stainless Steel 22x5x11 3 C/O 12589Ships to Continental US Only.   MagnaFlow Muffler Mag SS 22X5X11 3 C/O

  MSRP:

  Was:

  Now: $253.24

  Add to Cart The item has been added

• 

  Magnaflow Universal Converter 5.0 C/C 3.0 Spun OEM 51659

  Magnaflow Universal Converter 5.0 C/C 3.0 Spun OEM 51659Ships to Continental US Only.   MagnaFlow Conv Universal 5.0 C/C 3.0 Spun OEM

  MSRP:

  Was:

  Now: $331.00

  Add to Cart The item has been added

• 

  Magnaflow Stainless Steel Muffler 22x5x11 2.5 D/3 C 12588

  Magnaflow Stainless Steel Muffler 22x5x11 2.5 D/3 C 12588Ships to Continental US Only.   MagnaFlow Muffler Mag SS 22X5X11 2.5 D/3 C

  MSRP:

  Was:

  Now: $284.56

  Add to Cart The item has been added

• 

  Magnaflow Stainless Steel Muffler 18x5x8 3x3 C/C 12249

  Magnaflow Stainless Steel Muffler 18x5x8 3x3 C/C 12249Ships to Continental US Only.   MagnaFlow Muffler Mag SS 18X5X8 3X3 C/C

  MSRP:

  Was:

  Now: $219.88

  Add to Cart The item has been added

• 

  Magnaflow Stainless Steel Muffler 14x4x9 2.5/2.5 O/O 11236

  Magnaflow Stainless Steel Muffler 14x4x9 2.5/2.5 O/O 11236Ships to Continental US Only.   MagnaFlow Muffler Mag SS 14X4X9 2.5/2.5 O/O

  MSRP:

  Was:

  Now: $175.86

  Add to Cart The item has been added

• 

  Magnaflow Stainless Steel Muffler 14x4x9 2.5/2.5 C/C 11216

  Magnaflow Stainless Steel Muffler 14x4x9 2.5/2.5 C/C 11216Ships to Continental US Only.   MagnaFlow Muffler Mag SS 14X4X9 2.5/2.5 C/C

  MSRP:

  Was:

  Now: $175.86

  Add to Cart The item has been added

• 

  Magnaflow Stainless Steel Muffler 22x5x11 3 C/C 12579

  Magnaflow Stainless Steel Muffler 22x5x11 3 C/C 12579Ships to Continental US Only.   MagnaFlow Muffler Mag SS 22X5X11 3 C/C

  MSRP:

  Was:

  Now: $321.48

  Add to Cart The item has been added

• 

  Magnaflow Stainless Steel Muffler 14x5x8 3x3 C/C 12219

  Magnaflow Stainless Steel Muffler 14x5x8 3x3 C/C 12219Ships to Continental US Only.   MagnaFlow Muffler Mag SS 14X5X8 3X3 C/C

  MSRP:

  Was:

  Now: $197.98

  Add to Cart The item has been added

• 

  Magnaflow Stainless Steel Muffler 4x4x14 3 14419

  Magnaflow Stainless Steel Muffler 4x4x14 3 14419Ships to Continental US Only.   MagnaFlow Muffler Mag SS 4X4X14 3

  MSRP:

  Was:

  Now: $184.04

  Add to Cart The item has been added

• 

  Magnaflow Stainless Steel Muffler 4x9 14 2.5/2.5 13216

  Magnaflow Stainless Steel Muffler 4x9 14 2.5/2.5 13216Ships to Continental US Only.   MagnaFlow Muffler Trb SS 4X9 14 2.5/2.5

  MSRP:

  Was:

  Now: $203.28

  Add to Cart The item has been added

• 

  Magnaflow Universal Converter 2.5in Inlet/outlet Center/center Round 53956

  Magnaflow Universal Converter 2.5in Inlet/outlet Center/center Round 53956Ships to Continental US Only.   MagnaFlow Conv Univ 2.5in Inlet/Outlet Center/Center Round

  MSRP:

  Was:

  Now: $108.00

  Add to Cart The item has been added

• 

  Magnaflow Universal Converter 2.5 53006

  Magnaflow Universal Converter 2.5 53006Ships to Continental US Only.   MagnaFlow Conv Univ 2.5

  MSRP:

  Was:

  Now: $114.00

  Add to Cart The item has been added