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You are here: Home > Exhaust > Exhaust Systems > Downpipe Back

We found 43 results matching your criteria.

Turbo Downpipe Back Exhaust Systems - Diesel Trucks

These Downpipe Back Exhaust Systems can increase torque while providing an awesome and aggressive sound with augmented air flow.

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aFe Power 49-14003 LARGE Bore HD 4" Turbo-Back SS-409 Exhaust System aFe Power 49-44003 MACH Force XP 4" Down-Pipe Back 409 Stainless Steel Exhaust System 2002-2007 Chevrolet, GMC 6.6L aFe Power 49-44007-P MACHForce XP 5" Exhaust System Downpipe SS-409 MBRP S6004409 4" Down Pipe Back Single Side Stainless T409 Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Application:
2001-2007 GM Duramax 6.6L
  • Exhaust Gas Temperature Lowered
  • Increases Horsepower and Torque
  • Uses Aluminized Steel Material

aFe Power 49-44003 MACH Force XP 4" Down-Pipe Back 409 Stainless Steel Exhaust System for the following Vehicles:

    Full Vehicle Application List:
  • 2002-2003 Chevy Silverado HD 6.6L V8 LB7
  • 2004 Chevy Silverado HD 6.6L V8 LB7/LLY
  • 2005 Chevy Silverado HD 6.6L V8 LLY
  • 2006 Chevy Silverado HD 6.6L V8 LLY/LB7
  • 2007 Chevy Silverado HD 6.6L V8 LBZ
  • 2002-2003 GMC Sierra HD 6.6L V8 LB7
  • 2004 GMC Sierra HD 6.6L V8 LB7/LLY
  • 2005 GMC Sierra HD 6.6L V8 LLY
  • 2006 GMC Sierra HD 6.6L V8 LLY/LB7
  • 2007 GMC Sierra HD 6.6L V8 LBZ
Application:
2001-2007 GM Duramax 6.6L
  • Increased HP, Torque and Lower EGT's
  • Increased Flow and Performance with Aggressive Sound
  • For Open & Closed-Course Racing Only
Key Features:
  • Downpipe Back
  • Single Side Exit
  • Double Wall Tip
  • Muffler Included
  • XP Series T409 Stainless

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
MBRP S6004AL 4" Down Pipe Back Single Side Aluminized Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MBRP S6004BLK 4" Down Pipe Back Single Side Black Coated Aluminized Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MBRP S6004P 4" Down Pipe Back Single Side Aluminized Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MBRP S6004PLM 4" Down Pipe Back Single Side Aluminized Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Side Exit
  • Single Wall Tip
  • Muffler Included
  • Installer Series Aluminized

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Side Exit
  • Double Wall Tip
  • Muffler Included
  • Black Series Black Coated Aluminized

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Side Exit
  • Does Not Include Tip
  • Muffler Included
  • Performance Series Aluminized

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Side Exit
  • Does Not Include Tip
  • Muffler Not Included
  • PLM Series Aluminized

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
MBRP S6004SLM 4" Down Pipe Back Single Side Stainless T409 Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MBRP S6006409 4" Down Pipe Back Cool Duals Stainless T409 Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MBRP S6006AL 4" Down Pipe Back Cool Duals Aluminized Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ aFe Power 49-43039 MACHForce XP 5" Downpipe-Back SS-409 Exhaust System
Key Features:
  • Downpipe Back
  • Single Side Exit
  • Does Not Include Tip
  • Muffler Not Included
  • SLM Series T409 Stainless

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Dual Side Exit
  • Two Double Wall Tips
  • Muffler Included
  • XP Series T409 Stainless

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Dual Side Exit
  • Two Single Wall Tips
  • Muffler Included
  • Installer Series Aluminized

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Application:
2011-2014 Ford Powerstroke 6.7L
  • Exhaust Gas Temperature Lowered
  • Increases Horsepower and Torque
  • Uses Stainless Steel Material
aFe Power 49-43039NM MACHForce XP 5" Downpipe-Back SS-409 Exhaust System aFe Power 49-44007NM MACHForce XP Downpipe-Back SS-409 Exhaust System MagnaFlow 15900 4" Downpipe Back MagnaFlow Series Single Exhaust System for 1999-2003 Ford 7.3L Powerstroke MagnaFlow 15930 4" Downpipe Back MagnaFlow Series Single Exhaust System for 2000-2003 7.3L Ford Powerstroke
Application:
2011-2014 Ford Powerstroke 6.7L
  • Exhaust Gas Temperature Lowered
  • Increases Horsepower and Torque
  • Uses Stainless Steel Material
Application:
2001-2007 GM Duramax 6.6L
  • Exhaust Gas Temperature Lowered
  • Increases Horsepower and Torque
  • Uses Stainless Steel Material
Key Features:
  • Downpipe Back
  • Single Passenger Side Rear Exit
  • Double Wall Tip
  • Includes Muffler
  • MagnaFlow Series

1999-2003 Ford 7.3L Powerstroke
Key Features:
  • Downpipe Back
  • Single Passenger Side Rear Exit
  • Double Wall Tip
  • Includes Muffler
  • MagnaFlow Series

2000-2003 7.3L Ford Powerstroke
MagnaFlow 16900 4" Turbo Back MagnaFlow Series Single Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MagnaFlow 16908 5" Turbo Back MagnaFlow Series Single Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MagnaFlow 17903 4" Downpipe Back MagnaFlow Pro Series Dual Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ aFe Power 49-44003-B MACHForce XP 4" Exhaust System Downpipe SS-409
Key Features:
  • Downpipe Back
  • Single Passenger Side Rear Exit
  • Double Wall Tip
  • Includes Muffler
  • MagnaFlow Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Passenger Side Rear Exit
  • Double Wall Tip
  • Includes Muffler
  • MagnaFlow Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Dual Split Rear Exit
  • Does Not Include Tip
  • Includes Muffler
  • MagnaFlow Pro Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Application:
2001-2007 GM Duramax 6.6L
  • Increased HP, Torque and Lower EGT's
  • Increased Flow and Performance with Aggressive Sound
  • For Open & Closed-Course Racing Only
aFe Power 49-14003NM LARGE Bore HD 4" Turbo-Back SS-409 Exhaust System - No Muffler aFe Power 49-44003-P MACHForce XP 4" Exhaust System Downpipe SS-409 aFe Power 49-44007-B MACHForce XP 5" Exhaust System Downpipe SS-409 aFe Power 49-44007-P MACHForce XP 5" Exhaust System Downpipe SS-409
Application:
2001-2007 GM Duramax 6.6L
  • Exhaust Gas Temperature Lowered
  • Increases Horsepower and Torque
  • Uses Aluminized Steel Material
Application:
2001-2007 GM Duramax 6.6L
  • Increased HP, Torque and Lower EGT's
  • Increased Flow and Performance with Aggressive Sound
  • For Open & Closed-Course Racing Only
Application:
2001-2007 GM Duramax 6.6L
  • Increased HP, Torque and Lower EGT's
  • Increased Flow and Performance with Aggressive Sound
  • For Open & Closed-Course Racing Only
Application:
2001-2007 GM Duramax 6.6L
  • Increased HP, Torque and Lower EGT's
  • Increased Flow and Performance with Aggressive Sound
  • For Open & Closed-Course Racing Only
MBRP S6004304 4" Down Pipe Back Single Side Stainless T304 Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MBRP S60200409 5" Down Pipe Back Single Side Stainless T409 Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MBRP S60200AL 5" Down Pipe Back Single Side Aluminized Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MBRP S60200BLK 5" Down Pipe Back Single Side Black Coated Aluminized Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Side Exit
  • Double Wall Tip
  • Muffler Included
  • PRO Series T304 Stainless

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Cat Back
  • Single Side Exit
  • Double Wall Tip
  • Muffler Included
  • XP Series T409 Stainless

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Cat Back
  • Single Side Exit
  • Double Wall Tip
  • Muffler Included
  • Installer Series Aluminized

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Side Exit
  • Double Wall Tip
  • Muffler Included
  • Black Series Black Coated Aluminized

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
MBRP S60200P  5" Down Pipe Back Single Side Aluminized Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MBRP S60200PLM 5" Down Pipe Back Single Side Aluminized Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MBRP S60200SLM 5" Down Pipe Back Single Side Stainless T409 Exhaust for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MagnaFlow 17029 4" Turbo Back Black Series Single Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Side Exit
  • Does Not Include Tip
  • Muffler Included
  • Performance Series Aluminized

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Side Exit
  • Does Not Include Tip
  • Muffler Not Included
  • PLM Series Aluminized

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Side Exit
  • Does Not Include Tip
  • Muffler Not Included
  • SLM Series T409 Stainless

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Passenger Side Rear Exit
  • Double Wall Tip
  • Includes Muffler
  • Black Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
MagnaFlow 17036 5" Turbo Back MagnaFlow Series Single Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MagnaFlow 17980 4" Turbo Back Custom Builder Pipe Kit Series Single Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MagnaFlow 17981 4" Turbo Back Custom Builder Pipe Kit Series Dual Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MagnaFlow 17982 5" Turbo Back Custom Builder Pipe Kit Series Single Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Passenger Side Rear Exit
  • Double Wall Tip
  • Includes Muffler
  • MagnaFlow Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Passenger Side Rear Exit
  • Does Not Include Tip
  • Does Not Include Muffler
  • Custom Builder Pipe Kit Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Dual Split Rear Exit
  • Does Not Include Tip
  • Does Not Include Muffler
  • Custom Builder Pipe Kit Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Passenger Side Rear Exit
  • Does Not Include Tip
  • Does Not Include Muffler
  • Custom Builder Pipe Kit Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
MagnaFlow 17999 5" Turbo Back MagnaFlow Pro Series Single Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MagnaFlow 18980 4" Turbo Back Custom Builder Pipe Kit Aluminized Series Single Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MagnaFlow 18981 4" Turbo Back MagnaFlow Pro Aluminized Series Dual Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MagnaFlow 18982 5" Turbo Back Custom Builder Pipe Kit Aluminized Series Single Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Passenger Side Rear Exit
  • Does Not Include Tip
  • Includes Muffler
  • MagnaFlow Pro Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Passenger Side Rear Exit
  • Does Not Include Tip
  • Does Not Include Muffler
  • Custom Builder Pipe Kit Aluminized Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Dual Split Rear Exit
  • Does Not Include Tip
  • Does Not Include Muffler
  • MagnaFlow Pro Aluminized Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Passenger Side Rear Exit
  • Does Not Include Tip
  • Does Not Include Muffler
  • Custom Builder Pipe Kit Aluminized Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
MagnaFlow 18994 4" Turbo Back MagnaFlow Pro Aluminized Series Single Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MagnaFlow 18996 4" Turbo Back MagnaFlow Pro Aluminized Series Dual Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ MagnaFlow 18999 5" Turbo Back MagnaFlow Pro Aluminized Series Single Exhaust System for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Passenger Side Rear Exit
  • Does Not Include Tip
  • Includes Muffler
  • MagnaFlow Pro Aluminized Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Dual Split Rear Exit
  • Does Not Include Tip
  • Includes Muffler
  • MagnaFlow Pro Aluminized Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
Key Features:
  • Downpipe Back
  • Single Passenger Side Rear Exit
  • Does Not Include Tip
  • Includes Muffler
  • MagnaFlow Pro Aluminized Series

2001-2007 GM 6.6L Duramax LB7, LLY, LBZ
   
 
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More on Downpipe Back Exhaust Systems from OC Diesel

In certain downpipe back exhaust systems, a catalytic converter with more flow than the original converter is included. In others, the catalytic converter is removed completely and replaced with just a pipe. Removing it will generally give an increase in horsepower, but is not legal in most states because it is considered the removal of an emissions control device.