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aFe 4in SS Cat-Back Exhaust | GM 2500/3500HD V8 6.6L L8T (20-21) (49-44123-B) Exhaust, Mufflers & Tips offroad accessory | Iron Ridge Offroad
aFe 4in SS Cat-Back Exhaust | GM 2500/3500HD V8 6.6L L8T (20-21) (49-44123-B) Exhaust, Mufflers & Tips offroad accessory | Iron Ridge Offroad
aFe 4in SS Cat-Back Exhaust | GM 2500/3500HD V8 6.6L L8T (20-21) (49-44123-B) Exhaust, Mufflers & Tips offroad accessory | Iron Ridge Offroad
aFe 4in SS Cat-Back Exhaust | GM 2500/3500HD V8 6.6L L8T (20-21) (49-44123-B) Exhaust, Mufflers & Tips offroad accessory | Iron Ridge Offroad

aFe POWER 4-Inch SS Cat-Back Exhaust | GM 2500/3500HD V8 6.6L L8T (20-21) (49-44123-B)

SKU 49-44123-B
$820.00 - $820.00
$820.00
$820.00
$820.00 - $820.00
$820.00
  Lease to own   Pay as low as   $/week
Availability:
in stock, ready to be shipped

Part #: 49-44123-B

Overview

The aFe POWER 4-Inch SS Cat-Back Exhaust is an application-specific performance upgrade designed for GM 2500/3500HD V8 6.6L L8T (20-21). This listing has been cleaned up for easier mobile viewing while preserving the product's key manufacturer-provided details.

Key Features

  • Increases horsepower and torque
  • Improves performance
  • Lowers exhaust gas temperature
  • Flow bench and dyno tested
  • Welded hangers with swaged ends
  • Slotted and swedged ends

Installation & Fitment

Designed for GM 2500/3500HD V8 6.6L L8T (20-21). Verify your vehicle configuration and part number before ordering, especially where engine, trim, cab, bed, drivetrain, or emissions configuration can affect fitment.

Ideal For

Ideal for enthusiasts looking to upgrade exhaust flow, sound, and durability with an application-specific aFe POWER component.
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