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Diamond Eye K4340S 4" Cat-Back Dual Exhaust System T409 Stainless Steel

(2003-2007 Ford F-250 Super Duty; 2003-2007 Ford F-350 Super Duty; 2019-2021 Toyota RAV4; 2000, 2002-2004 Toyota Avalon XLS + 3 more models)

Manufacturer

Picture for manufacturer Diamond Eye Manufacturing

Part Number

K4340S
12 reviews
Sale Price

$842.51

Estimated ship date Sunday, November 22

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Product Details

The Diamond Eye K4340S is a complete 4-inch cat-back dual exhaust system engineered specifically for 2003.5-2007 Ford F-250/F-350 Super Duty trucks equipped with the 6.0L Powerstroke diesel engine and 4x4 drivetrain. This performance exhaust system accommodates all cab and bed length configurations.

Key Features:

  • Constructed from durable T409 stainless steel for superior corrosion resistance and longevity
  • Mandrel-bent 4-inch tubing throughout for maximum exhaust flow
  • Includes high-flow stainless steel muffler with perforated core for deep, refined tone
  • Stock-style split rear/side dual exit configuration for clean OE-plus appearance
  • Complete hardware kit with all required clamps and hangers included
  • Catalytic converter-back design retains factory emissions equipment

Performance Benefits:

  • Increased horsepower and torque through improved exhaust flow
  • Better fuel economy and lower exhaust gas temperatures (EGTs)
  • Deep, mellow exhaust tone without excessive drone
  • Straightforward installation using basic hand tools

This system is designed exclusively for 4x4 applications and follows the factory dual exit routing for proper ground clearance. Diamond Eye uses precision CNC mandrel bending to ensure smooth bends without crimping or flow restrictions. The T409 stainless steel construction provides excellent durability in harsh climates while maintaining an attractive finish.

Products specifications

Fits

2003-2007 Ford F-250 Super Duty; 2003-2007 Ford F-350 Super Duty; 2019-2021 Toyota RAV4; 2000, 2002-2004 Toyota Avalon XLS; 2000-2004 Toyota Avalon XL; 2000-2005 Pontiac Bonneville; 1971-1972 Alfa Romeo Berlina Base

Exhaust Type

Single in/Dual out

Exit Location

Split rear/Split side

Exit Quantity

Two

Inlet Quantity

One

Intermediate Pipe Diameter (in)

4.000 in.

Muffler Configuration

Single inlet/Single outlet

Muffler Finish

Natural

Muffler Included

Yes

Muffler Material

Stainless steel

Muffler Quantity

One

Muffler Style

Cylindrical

Quantity

Sold as a kit.

System Finish

Natural

System Material

Stainless steel

System Style

Cat-back

Tailpipe Diameter (in)

4.000 in.

Tip Included

No

Material

409 Stainless Steel

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