04.5-05 GM 6.6L LLY DURAMAX

Optimize airflow and fuel delivery for your 2004.5–2005 LLY Duramax with upgraded intercooler piping, turbo kits, and performance injectors. This section focuses on improving turbo spool and reducing EGTs while maintaining compatibility with stock turbochargers and factory engine management. Includes LLY-specific head studs and fuel system parts for daily driving or towing builds.

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  Magnaflow Stainless Steel Muffler 14x4x9 2.5 O/C 11226

  Magnaflow Stainless Steel Muffler 14x4x9 2.5 O/C 11226Ships to Continental US Only.   MagnaFlow Muffler Mag SS 14X4X9 2.5 O/C

  MSRP:

  Was:

  Now: $175.86

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  Magnaflow Stainless Steel Muffler 14x4x4 2.5x2.5 10416

  Magnaflow Stainless Steel Muffler 14x4x4 2.5x2.5 10416Ships to Continental US Only.   MagnaFlow Muffler Mag SS 14X4X4 2.5X2.5

  MSRP:

  Was:

  Now: $148.92

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  Magnaflow Conv Universal 2.50inch C/a 54976

  Magnaflow Conv Universal 2.50inch C/a 54976Ships to Continental US Only.   MagnaFlow Converter Universal 2.50inch C/A.  Not for sale or street use in CA & CARB states.

  MSRP:

  Was:

  Now: $146.00

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  Magnaflow 20" Diesel Muffler Universal - 4" Inlet/outlet, 20" Length * 12771

  Magnaflow 20" Diesel Muffler Universal - 4" Inlet/outlet, 20" Length * 12771Ships to Continental US Only.   Inlet/Outlet Size: 4in./4in. Body Shape: 7in. Round Core Size: 4in. Body Length: 20in.Material: 100% Stainless Steel - Satin Finish ...

  MSRP:

  Was:

  Now: $275.56

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  Magnaflow 4" Performance Muffler Universal - 4" Inlet/outlet, 20" Overall 12775

  Magnaflow 4" Performance Muffler Universal - 4" Inlet/outlet, 20" Overall 12775Ships to Continental US Only.   MagnaFlow Muffler Mag DSL SS 7x7x14 4in Inlet 4in Outlet

  MSRP:

  Was:

  Now: $307.42

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  Magnaflow 5" Angle Cut Exhaust Tip 4" In X 5" Out X 24" Long 35149

  Magnaflow 5" Angle Cut Exhaust Tip 4" In X 5" Out X 24" Long 35149Ships to Continental US Only.   MagnaFlow Tip 1-Pk Re 5.00X 24 4.00 Id 15

  MSRP:

  Was:

  Now: $287.18

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  Magnaflow 6" Dual Wall Angle Cut Exhaust Tip 5" In X 6" Out X 13" Long 35233

  Magnaflow 6" Dual Wall Angle Cut Exhaust Tip 5" In X 6" Out X 13" Long 35233Ships to Continental US Only.   Magnaflow Tip (1-Pk) DWACRE 6.00 x 13 - 5.00in. ID

  MSRP:

  Was:

  Now: $232.95

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  Magnaflow Federal Universal 4" Offset Catalytic Converter Universal 60121

  Magnaflow Federal Universal 4" Offset Catalytic Converter Universal 60121Ships to Continental US Only.   The Magnaflow 60121 Federal Universal 4" Offset Catalytic Converter is specially designed for your diesel exhaust system. MagnaFlow...

  MSRP:

  Was:

  Now: $595.00

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  Magnaflow Black Series Intercooled Angle Cut Exhaust Tip 4" In, 5" Out, 13" 35220

  Magnaflow Black Series Intercooled Angle Cut Exhaust Tip 4" In, 5" Out, 13" 35220Ships to Continental US Only.   The Magnaflow 35220 5" Black Series Intercooled Angle Cut Exhaust Tip features a 100% stainless steel construction with a durable black...

  MSRP:

  Was:

  Now: $306.33

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  Magnaflow 5" Angle Cut Exhaust Tip 3.5" In X 5" Out X 14.5" Long 35213

  Magnaflow 5" Angle Cut Exhaust Tip 3.5" In X 5" Out X 14.5" Long 35213Ships to Continental US Only.   MagnaFlow Tip W/Clamp 5x14.5inch 3.5inch ID

  MSRP:

  Was:

  Now: $240.83

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  Magnaflow 5" Angle Cut Exhaust Tip 4" In X 5" Out X 13" Long 35214

  Magnaflow 5" Angle Cut Exhaust Tip 4" In X 5" Out X 13" Long 35214Ships to Continental US Only.   MagnaFlow Tip W/Clamp 5x13inch 4inch ID

  MSRP:

  Was:

  Now: $226.82

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  Magnaflow 5" Angle Cut Exhaust Tip 4" In X 5" Out X 13" Long 35120

  Magnaflow 5" Angle Cut Exhaust Tip 4" In X 5" Out X 13" Long 35120 Ships to Continental US Only.   MagnaFlow Tip 1-Pk Re 5.00 X 13 4.00 Id 15D

  MSRP:

  Was:

  Now: $225.15

  Out of stock. Please Call For Availability