Diamond Eye Performance

Diamond Eye 4in Aluminized Cat-Back Exhaust System — 01-05 Chevy/GMC 6.6L

Diamond Eye 4in Aluminized Cat-Back Exhaust System — 01-05 Chevy/GMC 6.6L
Diamond Eye 4in Aluminized Cat-Back Exhaust System — 01-05 Chevy/GMC 6.6L
Diamond Eye 4in Aluminized Cat-Back Exhaust System — 01-05 Chevy/GMC 6.6L
Diamond Eye 4in Aluminized Cat-Back Exhaust System — 01-05 Chevy/GMC 6.6L
Diamond Eye 4in Aluminized Cat-Back Exhaust System — 01-05 Chevy/GMC 6.6L
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Diamond Eye 4in Aluminized Cat-Back Exhaust System — 01-05 Chevy/GMC 6.6LDiamond Eye 4in Aluminized Cat-Back Exhaust System — 01-05 Chevy/GMC 6.6LDiamond Eye 4in Aluminized Cat-Back Exhaust System — 01-05 Chevy/GMC 6.6LDiamond Eye 4in Aluminized Cat-Back Exhaust System — 01-05 Chevy/GMC 6.6LDiamond Eye 4in Aluminized Cat-Back Exhaust System — 01-05 Chevy/GMC 6.6L
Diamond Eye Performance

Diamond Eye 4in Aluminized Cat-Back Exhaust System — 01-05 Chevy/GMC 6.6L

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SKU: DEPK4110A
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$736.99 $884.14
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches
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Product Details

Product Description
Part Numbers
Sizing & Fit

About Diamond Eye Performance

Diamond Eye Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Diamond Eye Performance lineup with fast shipping and expert fitment support — order with confidence.

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Diamond Eye 4in Cat-Back Exhaust System

Unlock the hidden potential of your 2001-2005 Chevy Silverado or GMC Sierra 2500/3500 with the Diamond Eye 4in Cat-Back Exhaust System. Engineered specifically for the 6.6L Duramax engine, this system replaces restrictive factory piping with high-flow, mandrel-bent aluminized steel to improve throttle response and lower exhaust gas temperatures (EGTs).

Performance Benefits

  • Increased Horsepower & Torque: Smoother exhaust flow allows your engine to breathe better under load.
  • Reduced EGTs: Lower temperatures help protect your engine during towing and heavy-duty use.
  • Aggressive Sound: Delivers a deep, throaty exhaust note that signifies true diesel power.
  • Direct Fitment: Designed for a precise fit on 2001-2005 6.6L Duramax 2500/3500 trucks.

Diamond Eye Performance utilizes advanced CNC mandrel bending to ensure every section of this kit provides maximum efficiency. The aluminized steel construction offers a balance of durability and value, making it an excellent upgrade for daily drivers and work trucks alike. Experience improved engine efficiency and a bold new sound with this complete cat-back solution available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2001-2005 Chevrolet Silverado 2500 HD Base
2001-2005 Chevrolet Silverado 2500 HD LS
2001-2005 Chevrolet Silverado 2500 HD LT
2004-2005 Chevrolet Silverado 2500 HD WT
2001-2005 Chevrolet Silverado 3500 Base
2001-2005 Chevrolet Silverado 3500 LS
2004 Chevrolet Silverado 3500 WT
2001-2002 GMC Sierra 2500 HD SL
2001-2005 GMC Sierra 2500 HD SLE
2001-2005 GMC Sierra 2500 HD SLT
2002-2005 GMC Sierra 2500 HD Base
2003-2005 GMC Sierra 2500 HD WT
2001-2005 GMC Sierra 3500 SLE
2001-2005 GMC Sierra 3500 SLT
2002-2005 GMC Sierra 3500 Base
2004-2005 GMC Sierra 3500 WT

Product Details

Product Description
Part Numbers
Sizing & Fit

About Diamond Eye Performance

Diamond Eye Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Diamond Eye Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Diamond Eye 4in Cat-Back Exhaust System

Unlock the hidden potential of your 2001-2005 Chevy Silverado or GMC Sierra 2500/3500 with the Diamond Eye 4in Cat-Back Exhaust System. Engineered specifically for the 6.6L Duramax engine, this system replaces restrictive factory piping with high-flow, mandrel-bent aluminized steel to improve throttle response and lower exhaust gas temperatures (EGTs).

Performance Benefits

  • Increased Horsepower & Torque: Smoother exhaust flow allows your engine to breathe better under load.
  • Reduced EGTs: Lower temperatures help protect your engine during towing and heavy-duty use.
  • Aggressive Sound: Delivers a deep, throaty exhaust note that signifies true diesel power.
  • Direct Fitment: Designed for a precise fit on 2001-2005 6.6L Duramax 2500/3500 trucks.

Diamond Eye Performance utilizes advanced CNC mandrel bending to ensure every section of this kit provides maximum efficiency. The aluminized steel construction offers a balance of durability and value, making it an excellent upgrade for daily drivers and work trucks alike. Experience improved engine efficiency and a bold new sound with this complete cat-back solution available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2001-2005 Chevrolet Silverado 2500 HD Base
2001-2005 Chevrolet Silverado 2500 HD LS
2001-2005 Chevrolet Silverado 2500 HD LT
2004-2005 Chevrolet Silverado 2500 HD WT
2001-2005 Chevrolet Silverado 3500 Base
2001-2005 Chevrolet Silverado 3500 LS
2004 Chevrolet Silverado 3500 WT
2001-2002 GMC Sierra 2500 HD SL
2001-2005 GMC Sierra 2500 HD SLE
2001-2005 GMC Sierra 2500 HD SLT
2002-2005 GMC Sierra 2500 HD Base
2003-2005 GMC Sierra 2500 HD WT
2001-2005 GMC Sierra 3500 SLE
2001-2005 GMC Sierra 3500 SLT
2002-2005 GMC Sierra 3500 Base
2004-2005 GMC Sierra 3500 WT

Product Details

Product Description

About Diamond Eye Performance

Diamond Eye Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Diamond Eye Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Diamond Eye 4in Cat-Back Exhaust System

Unlock the hidden potential of your 2001-2005 Chevy Silverado or GMC Sierra 2500/3500 with the Diamond Eye 4in Cat-Back Exhaust System. Engineered specifically for the 6.6L Duramax engine, this system replaces restrictive factory piping with high-flow, mandrel-bent aluminized steel to improve throttle response and lower exhaust gas temperatures (EGTs).

Performance Benefits

  • Increased Horsepower & Torque: Smoother exhaust flow allows your engine to breathe better under load.
  • Reduced EGTs: Lower temperatures help protect your engine during towing and heavy-duty use.
  • Aggressive Sound: Delivers a deep, throaty exhaust note that signifies true diesel power.
  • Direct Fitment: Designed for a precise fit on 2001-2005 6.6L Duramax 2500/3500 trucks.

Diamond Eye Performance utilizes advanced CNC mandrel bending to ensure every section of this kit provides maximum efficiency. The aluminized steel construction offers a balance of durability and value, making it an excellent upgrade for daily drivers and work trucks alike. Experience improved engine efficiency and a bold new sound with this complete cat-back solution available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2001-2005 Chevrolet Silverado 2500 HD Base
2001-2005 Chevrolet Silverado 2500 HD LS
2001-2005 Chevrolet Silverado 2500 HD LT
2004-2005 Chevrolet Silverado 2500 HD WT
2001-2005 Chevrolet Silverado 3500 Base
2001-2005 Chevrolet Silverado 3500 LS
2004 Chevrolet Silverado 3500 WT
2001-2002 GMC Sierra 2500 HD SL
2001-2005 GMC Sierra 2500 HD SLE
2001-2005 GMC Sierra 2500 HD SLT
2002-2005 GMC Sierra 2500 HD Base
2003-2005 GMC Sierra 2500 HD WT
2001-2005 GMC Sierra 3500 SLE
2001-2005 GMC Sierra 3500 SLT
2002-2005 GMC Sierra 3500 Base
2004-2005 GMC Sierra 3500 WT

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